CNPS Forums  

Go Back   CNPS Forums > CNPS Public Forums > Growing Natives Discussion Forum

Thread Tools Display Modes
Old 11-11-2015, 11:34 PM
terrestrial_man terrestrial_man is offline
Forum Member
Join Date: Jan 2011
Location: Santa Maria
Posts: 81
terrestrial_man is on a distinguished road
Default The Tenacity of Selaginella

Back in January and February, 2015, I began and finished the task of cleaning up and repotting the surviving Selaginella species in my possession. I was sadden by the loss of some, particularly S. oregana, but surprised by the number of species that had hung on despite the random nature of my care after a two and a half month bout with pneumonia in which they received very little care and a subsequent period of inattention and minimal care.
In the process of repotting the survivors I would occasionally break off a piece of a stem or a stem would just fragment through contact. At the time I decided to save these and stuff them together into a pot with the gravel based potting mix I was using and see if they would survive and grow new plants. Most had no rhizophores (root-like structures) though a few of the creeping stem had some. The first image below taken on my final date of repotting, 18 Feb 2015, shows the condition of the stems then.
While I did expect some to survive, I am surprised by just how well the stems have done and by the appearance of a Stachygynandrous species, native to the Eastern USA, Selaginella apoda. This species grew entirely from spores.
Below you will find 3 photos of the growing stems which I took yesterday. Let's look closer at each one:
2015 NOV 11 A: back side view
An overview of the colony showing the low spreading S. apoda in the left foreground with erect and spreading species of the Tetragonostachys.
2015 NOV 11 B: right side view
A close up view showing strobili appearing on some upright stems and some of the stems of S. apoda growing upright, a precusor to forming strobili.
2015 NOV 11 C: front side view
A close up view showing strobili appearing on a conspicuous stem of S. apoda
and on some of the other species as well.
The plants all look quite robust and have fared very well with my culture.
This is a great illustration of perhaps the most successful method of distribution of the Tetragonostachys while the presence of S. apoda, a member of the subgenus Stachygynandrum, illustrates the vitality and success of distribution by spores.
Attached Thumbnails
Click image for larger version

Name:	2015 FEB 18.JPG
Views:	643
Size:	531.8 KB
ID:	636   Click image for larger version

Name:	2015 NOV 11 A.JPG
Views:	678
Size:	64.6 KB
ID:	637   Click image for larger version

Name:	2015 NOV 11 B.JPG
Views:	643
Size:	431.8 KB
ID:	638   Click image for larger version

Name:	2015 NOV 11 C.JPG
Views:	635
Size:	402.7 KB
ID:	639  
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 04:05 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright 2005-2009, California Native Plant Society, All rights reserved.