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 |
Comentarios
@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.
@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
thanks @astorey_botany -- this helps a bunch.
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