Flora of North America species comparison

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Grimmia subg. Rhabdogrimmia
Habit Plants 1–8 cm.
Stem

central strand present or absent.
Gemmae

present or absent.
Leaves

lanceolate to ovate-lanceolate, keeled, costa projecting on abaxial side, leaf margin recurved on one or two sides;

basal marginal cells not hyaline (except G. funalis and G. torquata);

laminal cells usually 1-stratose distally (2–4 stratose in G. elatior and G. funalis) except at margin.
Seta

arcuate to cygneous when moist, centrally attached to capsule.
Capsule

cernuous or pendulous, striate to sulcate when dry and empty (smooth in G. attenuata), stomata present at base of capsule (absent in G. anomala).
Calyptra

mitrate to cucullate.

Grimmia subg. Rhabdogrimmia
Distribution
North America; Mexico; Central America; South America; Eurasia; Africa; Pacific Islands; Australia
Discussion

Species 32 (17 in the flora).

Members of subg. Rhabdogrimmia are recognized by their lanceolate, thin, sharply keeled leaves with recurved margins, typically 1-stratose lamina with 1- or 2-stratose margins, and long, arcuate seta with striate to sulcate capsules. Most members occur on dry acidic rock.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 27, p. 247.
Parent taxa Grimmiaceae > subfam. Grimmioideae > Grimmia
Subordinate taxa
Name authority Limpricht: Laubm. Deutschl. 1: 759. (1889)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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