Tropicos | Name - !Grimmia ovalis (Hedw.) Lindb.

CAMoss > Grimmiaceae > Grimmia > Grimmia ovalis

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!Grimmia ovalis (Hedw.) Lindb.

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Project Name Data (Last Modified On 2/17/2011)

Acceptance : Accepted

Project data (Last Modified On 2/17/2011)

Discussion:

Grimmia ovalis is distinguished from all other members of the genus in Central America by its broad, ovate-lanceolate leaves that are bistratose in the upper ½ to 2/3, have plane lower margins, an extensive area of quadrate to oblate basal marginal cells, and a costa that in cross-section is nearly flat on the dorsal surface. The only collection of this species from Central America, the type of G. bernoullii, differs from most other collections of G. ovalis in having a mitrate rather than cucullate calyptra and multiple setae from some perichaetia.

Bartram (1949) reported G. ovalis from Guatemala, but the taxon has been nomenclaturally confused with G. commutata Hüb. and G. affinis (= G. longirostris) see Sayre (1951). Most collections named G. ovalis are instead G. longirostris, while collections named G. commutata are properly referred to G. ovalis. The collections Bartram (1949) reported under G. ovalis are a mixture of G. longirostris, G. elongata and G. ovalis.

Illustrations: Nyholm (1956, Fig. 69 I, as G. commutata); Abramova et al. (1961, Pl. 137 8–14, as G. commutata); Lawton (1971, Pl. 63 1–8); Smith (1978, Fig. 150 5–9); Jóhannsson (1993, Pl. 38); Sharp et al. (1994, Fig. 293); Maier and Geissler (1995, Fig. 20). Figure 99.

Distribution in Central America: GUATEMALA. Quezaltenango: Bernoulli & Cario (PC).

World Range: Subarctic America, Western and Eastern Canada, Northwestern, North-Central, Southwestern, and South-Central U.S.A.; Mexico; Central America; Northern, Southwestern, Middle, Southeastern, and East Europe; Macaronesia, Northern and Southern Africa; Siberia, Russian Far East, Caucasus, Middle Asia, China, Mongolia, Eastern Asia; Indian Subcontinent, Malesia; Australia.