Field of Science

The Mosses of her Passion - The Signature of All Things

From the LuEsther T. Mertz Library of
The New York Botanical Garden, Bronx, NY
***Spoiler Alert***
This post may contain plot details and quotes from The Signature of All Things
Proceed with caution!

The mosses have finally arrived as significant characters in Part 3! We discover that Alma has decided to devote her time and energies to studying mosses in the genus Dicranum and she becomes the world expert on this group.  I am most familiar with Dicranum scoparium, the broom moss, which is common in eastern deciduous forests. It's common name comes from the leaves that are all curving in the same direction, as though the moss had been used to sweep the floor. It is one of the first species I like to teach people when walking in the woods. It is charismatic and easy to recognize. 

The moss pictured in this plate is Dicranum squarrosum. The specific epithet of the scientific name describes the leaves of this species, which stick out at right angles to the stem. This arrangement is due to the leaves having a bend in them, which can be seen at the bottom center of the plate. 

It was a bit of a tease, or foreshadowing, that these images of Dicranum were placed at the end of Part I, long before Alma discovered her passion for mosses. Mostly it had me wondering when we would start to hear more about the mosses.  Stay tuned for more to come on the mosses of Part 3!

The Signature of All Things: Part 2 - Catching bryophyte fever

***Spoiler Alert***
This post may contain plot details and quotes from Parts 1 & 2 of The Signature of All Things. Proceed with caution!

The second part of The Signature of All Things focuses on the childhood of the main character Alma Whittaker. In my mind the true main characters, the bryophytes, have yet to truly arrive on the scene. There is a brief mention of mosses being used by birds as material for nest building. Alma also uses mosses to fill the chinks in the walls of her study to cut down on winter drafts. Hornworts come up during a scientific discussion between Alma and her colleague George Hawkes. He describes them to another friend as "...among our least sophisticated plants-". I take mild offense to that statement. I think hornworts are super interesting and highly sophisticated in their ability to establish a mutualistic interaction with cyanobacteria (blue-green algae). They have pores on the underside of the plant that open to allow the algae to enter. The algae then live and grow inside of the hornwort helping to fix nitrogen, making it available for the hornwort to use. I think that establishing a relationship like that is pretty sophisticated. Don't you?

At the tail end of Part 2 bryophytes take their rightful place at center stage. Alma has a revelation that right beneath her nose, on the land she has known her entire life, is a world unexplored. The miniature world of mosses. An entire rock may be covered by dozens of species that occupy distinct niches. A little sunnier over here, a little wetter over there, makes for diverse habitats even within a few feet. It is amazing how small changes in the microclimate can make such a big difference to the bryophytes. The description of Alma's epiphany to focus her botanical energies on mosses is full of lovely imagery, such as the passage below. 
"Now the miniature forest below her gaze sprang into majestic detail. She felt her breath catch. This was a stupefying kingdom. This was the Amazon jungle as seen from the back of a harpy eagle. She rode her eye above the surprising landscape, following its paths in every direction. Here were rich, abundant valleys filled with tiny trees of braided mermaid hair and minuscule, tangled vines. Here were barely visible tributaries running through that jungle..."
Having done so myself, falling in love with bryophytes is an amazing experience. Upon closer inspection, you realize that there is a world of wonder to explore in miniature. The closer you look the more there is to discover. An adventure that can last a lifetime. 

December 2013 Desktop Calendar

The fact that I have exhausted my moss photos from summer hiking definitely means that I am in need of some outdoor time with plants. Fortunately winter in California means it is possible to see mosses without having to dig them out of the snow. I just wish we had a little more rain to help make them more photogenic. My goal before the holiday break. Find some mosses. Take some photos. 

In the meantime this is another view from our summer hiking in New Hampshire to the top of Mt. Monadnock. From this vantage the trees could be a mossy carpet trailing off into the distance...


1 - Single click on the image to open it up in a new window. (If you use the image directly from the blog post you will lose a lot of resolution.)

2 - Right-click (or ctrl-click) on the image, and chose the option that says, "Set as Desktop Background" or "Use as Desktop Picture". The wording may vary.

3 - If the image does not fit your desktop neatly, you may have to adjust the image (Mac: System Preferences - Desktop and Screen Saver - Desktop; Windows: Control Panel - Display - Desktop) and choose "Fill screen" as the display mode of your background image.

The Signature of All Things: Part 1


I read through the first part of The Signature of All Things this past weekend. There is not much to report on the bryological front. Mosses only popped in once or twice. They were used to pack seeds and other plants for transport during long ocean voyages of the 18th and 19th centuries. In this part of the book we are briefly introduced to the main character, Alma, at her birth. Mainly this section focuses on Alma's grandfather, father, and thus her botanical roots.

This book is at the top of my pleasure reading pile. More updates to come after I read through Part 2. 

The Mystery of the Missing Moss

This is a tale of a small group of mosses in the genus Sorapilla. Over the past 150 years they were located by scientists only a handful of times in the wild. That is until recently. A undergraduate student found a population of Sorapilla papuana in Queensland, Australia. 

The real mystery about these mosses is determining its closest relatives. It has a very unique morphology = (exterior size and shape), which has helped researchers come up with hypotheses about its relatives. This new discovery of live mosses means that DNA can be extracted from the plants and used to test these ideas, potentially resolving the conundrum of Sorapilla's relatives.


Honestly I had never known about this genus before hearing about it's recent re-discovery. The article (linked to above) alludes to its unique morphology and I was interested to learn more about it. These mosses grow in tropical regions, so off I went to my Guide to the Bryophytes of Tropical America. To my surprise and delight I discovered that Sorapilla mimics some of my favorite mosses, the Fissidentaceae. 


Both Sorapilla and the Fissidentaceae have leaves in two-ranks, meaning they have a row that runs along the right side of the stem opposite a row that runs down the left side. Most mosses have leaves that spiral around the stem, sticking off in all possible directions. The other cool feature about the leaves is that they are divided into two regions a single layered lamina at the top and a region below where the leaf forks, creating a pocket that clasps the leaf above it. Based on my reading, these are the only two groups of mosses with this type of leaf. Despite these similarities, other features of the sporophyte indicate that Sorapilla and the Fissidentaceae are not closely related. I am really excited to hear what the findings are from the DNA data and which mosses are the closest relatives of Sorapilla. If in the end it is not a close relative of the Fissidentaceae, then it will be another cool example of convergent evolution. Two distantly related species evolving similar morphologies.  


Click here for a link to an image of Sorapilla papuana. 
Not to be confused with sopapillas, the tasty fried pastry.


For comparison, this is a photo of Fissidens that
I took while hiking in the Sierra Nevada Mountains. 

I find it a funny irony that the closest town to the population of the rediscovered moss is called Mossman. It sounds like a town full or moss super heros. MossMan! However, the town name was originally Mosman, so it probably wasn't named for moss plants.  

Hat tip to Dr. Tobias Landberg for sending me the article about this discovery. 


November 2013 Desktop Calendar

Another lovely moss from our summer hike up Mt. Monadnock in New Hampshire. This is the moss Polytrichum commune. Its common name is the hairy-capped moss, named so for its hairy calyptra. Calyptra are the little caps of maternal gametophyte tissue that cover the top of the young offspring sporophytes. These caps prevent water loss from the apex of the developing plant. Think of it as your mother sending you out the door to play with a fuzzy little cap atop your head. However, this cap is meant to keep your wet hair from drying out rather than to keep out the cold. I like to think of it as a reverse shower cap. A little odd to imagine the human equivalent, but it works well by keeping the top of the mosses moist in the dry air. For more on calyptra, check out this summary about my PhD research studying calyptrae. Happy November!



1 - Single click on the image to open it up in a new window. (If you use the image directly from the blog post you will lose a lot of resolution.)

2 - Right-click (or ctrl-click) on the image, and chose the option that says, "Set as Desktop Background" or "Use as Desktop Picture". The wording may vary.

3 - If the image does not fit your desktop neatly, you may have to adjust the image (Mac: System Preferences - Desktop and Screen Saver - Desktop; Windows: Control Panel - Display - Desktop) and choose "Fill screen" as the display mode of your background image.

A New Moss Identification Guide

I recently reviewed this new moss field guide for the Botanical Society of America's Plant Science Bulletin. The link below will take you to the Fall 2013 volume. My review is on pages 131 and 132.

Budke JM. 2013. Book Review of Common Mosses of the Northeast and Appalachians. Plant Science Bulletin 59(3): 131-132.


Overall I think that this is a really great text and would highly recommend it for anyone interested in identifying mosses in the northeastern United States and Canada from Wisconsin to Nova Scotia and south throughout the Appalachian Mountains. (Full disclosure: I did receive a free copy of the book when writing this review, but was in no other way compensated.) 

For another perspective, check out this review: Kimmerer, RW. 2013. Field Guide to Northeast Mosses. The Bryologist 116(3):321-322.

In the same volume of the Plant Science Bulletin (pg 137-138) there is a review of the latest book by Amy Stewart The Drunken Botanist: The Plants That Create the World’s Great Drinks. I have one of her earlier books Wicked Plants: The Weed That Killed Lincoln's Mother and Other Botanical Atrocities. I really enjoyed this earlier book and am looking forward to reading the new one! Exploring the plants that are deadly and atrocious is one way to get people interested in plants. Enlightening them about plants used in alcoholic beverages is sure to be another fun way to start thinking about plants. A fact of note: the review of Stewart's book is by Alexandra Boni an undergraduate student from Bucknell University. Kudos to her for writing a nice review of the book. It most certainly has me excited to check it out!

UPDATE - 22 Nov 2013 - Another positive review of this book. Hedenäs, L. 2013. Common Mosses of the Northeast and Appalachians. 173(4): 790–791.

Have you heard of Bogology?

Have you heard of Bogology? Probably not, because I think it is a bit of a newly invented term. Bogology is the study and science of peatlands. I just heard about this new website and blog by researchers from the United Kingdom who are studying peatlands. If you are interested in peat bogs and Sphagnum mosses, the information and discussions they have will be right up your alley.

Thanks to Dr. Kaisa Kajala for making me aware of this site!

The Bryophytes on the Cover

The front cover oElizabeth Gilbert's new novel The Signature of All Things features some lovely bryophyte paintings. They are from the 1905 edition of the German encyclopedia Meyers Konversations-Lexikon. I have not had the pleasure of perusing this encyclopedia, but I do have fond memories of an English version of encyclopedia Britannica. My parents bought a set when I was in elementary school. Black and red cover, crisp glossy pages. Ah, memories. Can you tell I am a bit of a bibliophile? For those of you who have not enjoyed a hardbound encyclopedia set, they were the precursor to google and wikipedia. Want to know something about a fast animal, far-a-way country, historic event, or odd fruit? As my dad would always say, "Go check the encyclopedia." It provided tons of information to answer my pressing questions and constant need to know. Sometimes my sister and I would just sit down with a volume and flip through pages, reading about interesting topics for fun. Did I mention that I grew up in rural Indiana and there weren't a lot of entertainment options?  


Back to the bryophytes of the beautiful image on the cover of The Signature of All Things. In terms of bryophyte identification, there are some complex thalloid liverworts in front with tall antheridiophores and archegoniophores springing up from the ribbons below. Antheridiophores are the male reproductive structures that produce sperm; archegoniophores are the female reproductive structures that make eggs.  On either edge of the cover are mosses with sporophyte capsules elevated on tall stalks. They are most definitely members of the Splachnaceae, the dung moss family. I love saying that name (SP-laCK!-n-ace-a-ee). It has a very dung-y ring to the name! My best guess on a species level identification is Splachnum luteum.  The common names for members of this genus are really great. They include umbrella moss and petticoat moss, which describe the shape of the capsules. I think that petticoat moss is especially fitting for the cover of a book set in Victorian times, about a woman who most likely wore petticoats. 

A New Botanical Heroine

Rarely do female botanists appear as characters in pop culture. Exceptions that I can think of are Poison Ivy from the Batman comics and movies. She was a botanist before becoming a plant-loving super villain. Also there was the horrible movie Paycheck that featured a female botanist as the love interest. This movie sticks in my mind because the portrayal of her 'botany lab' was completely fantastical and laughable.

In comparison, I have much higher hopes for the botanical heroine in Elizabeth Gilbert's new novel The Signature of All Things. Not only is the heroine a botanist, but she is a bryologist! I have heard good things about the book both through reviews in the popular media and fellow bryologists. Fortunately for me I have great friends that indulge my passion for mosses and I was gifted this book for my upcoming birthday. I will keep you posted on my reading progress and any bryological gems that I find!

For more about the book, check out Barbara Kingsolver's review in the New York Times.

Mosses in the Garden

Thinking about integrating some mosses into your garden or landscaping? Have a shady spot that could use a bit of green? Gardening with mosses may be in your future...

Kathy Connolly has written an article on just this topic for The Day newspaper out of New London, CT. I am quoted throughout the article for some tips and moss biology info. Check out the full text for free on their website.

My favorite quote from the article. 
"If you put a philodendron through a blender," says Budke, "you have a dead philodendron. But with moss, each living cell is capable of growing a whole new plant. That's why the blender works." 
This the backyard of the house where I used to live in Connecticut.
Others might call it the 'frog pond' or 'herpetology pool'.
I always thought of it as the "moss pond".
That is just one amazing fun fact about mosses! Each live cell is totipotent. Meaning that each can regrow an entirely new plant and be any type of cell. Similar to stem cells in animals that can be used to grow many different types of organs.

Overall it was a fun interview to give and I think the article came out very well! Informative, interesting, and all about mosses!

October 2013 Desktop Calendar

Pictured here are a few mosses in yellow-green that are surrounded by some complex thalloid liverworts for your October desktop. These are from our hike to the Stebbins Cold Canyon Reserve this past spring. The weather is finally starting to cool down here in the central valley and I am hoping that we will get out for a few more hikes while the weather is lovely and comfortable. Happy botanizing!


1 - Single click on the image to open it up in a new window. (If you use the image directly from the blog post you will lose a lot of resolution.)

2 - Right-click (or ctrl-click) on the image, and chose the option that says, "Set as Desktop Background" or "Use as Desktop Picture". The wording may vary.

3 - If the image does not fit your desktop neatly, you may have to adjust the image (Mac: System Preferences - Desktop and Screen Saver - Desktop; Windows: Control Panel - Display - Desktop) and choose "Fill screen" as the display mode of your background image.