Syntrichia table

Species	Recurved margins?	Costal hydroids?	Costal stereids?	Papillae
Syntrichia ruralis	Almost to leaf apex	Absent	3-6 dorsal rows	simple, numerous
Syntrichia virescens	Proximal half of leaf	Absent	1-2 dorsal rows	branched, numerous
Syntrichia papillosimma	Almost to leaf apex	Absent	3-6 dorsal rows	branched, numerous
Syntrichia subpapillosimma	Almost to leaf apex	Absent	3-6 dorsal rows	branched, 1
Syntrichia princeps	1/2-3/4 leaf length	Present	?	branched, numerous
Syntrichia ruraliformis	Almost to leaf apex	Absent	3-6 dorsal rows	simple, numerous

Posted on January 13, 2023 05:34 PM by

rambryum

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@terrymcintosh I am trying to sort out those new species additions you mentioned but I have some blanks and I can't see the difference between papillosimma and subpapillosimma.

Posted by rambryum over 1 year ago

@rambryum This is from Kellman's key to Syntrichia in the northern hemisphere:

"39. Medial cells with 1 branched, stellate or antleroid papilla, papillae at back of upper costa stellate-branched or bifurcate, rarely simple, 2.5-7.5 μm tall .........................................................................................S. papillosissima

Medial cells with more than 1, usually bifurcate, rarely stellate branched. Papillae on the back of the upper costa simple, 2.5-5 μm tall ........................................................................................................................S. subpapillosissima"

I hope this helps.

Kellman, K. (2016). A synopsis of recent literature on the Syntrichia in the northern hemisphere. https://www.researchgate.net/publication/304782809

Posted by astorey_botany over 1 year ago

thanks @astorey_botany -- this helps a bunch.

Posted by rambryum over 1 year ago

Syntrichia table

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