Clasmatodon.] BEYACE^. 297 



1. H, Notarisii, Schimi^. Tufts bright green ; stems creep- 

 ing ; branches short, erect-spreading : leaves ecostate ; cells of 

 the areolation elliptical, fusiform in the narrower part and in 

 the middle of the leaves, quadrate and transversely rectangular 

 along and toward the borders : cajDSule light brown, minutely 

 sulcate, with a small orifice and no collum ; pedicel 8 to 10 

 m.m. long, twisted to the left when dry. — Syn. 505, and Bryol. 

 Eur. Suppl. Habrodon^ 2, t. i. Pterogoniwn 'perpu&illuin^ 

 DeNot. Clasmatodon perpusillus^ Lindb. Journ. Linn. Soc. 

 xiii. 70. 



Hab. Trunks of trees, Central Ohio [Sullh>ant)\ sterile. 



117. CLASMATODON, Hook. & Wils. (PI. 5.) 

 Plants minute ; stems very slender, filiform, creeping, intricate 

 and irregularly branching. Leaves imbricate, erect or si^read- 

 ing, concave, lanceolate-acuminate from a broadly ovate base ; 

 borders entire or minutely serrulate at the apex, recurved to- 

 ward the base ; costa flat, vanishing in the middle ; areolation 

 fusiform, quadrate near the borders from the middle to the 

 base ; perichoBtial leaves long-lanceolate, ecostate, loosely areo- 

 late, the inner half-sheathing. Flowers monoecious, Calyptra 

 dimidiate. Capsule very small, short-pedicelled, oblong-oval, 

 erect, thin, constricted under the orifice when dry. Operculum 

 conical, obliquely long-rostrate. Peristome simple, of 16 yel- 

 lowish very irregular teeth, distantly and obscurely articulate, 

 dentate or perforated at base, granulate and geniculate. Annu- 

 lus large, compound, of 3 or 4 cells, persistent, covering the 

 basilar membrane, dark colored. 



A single species is known of this genus. Lindberg, however, refers to 

 it both Habrodon and Anisodon of Schimper. 



1. C. parVTllus, Sulliv. Characters of the genus, as above. 

 — Mosses of U. States, 60, and Icon. Muse. 126, t. 79; Sulliv. 

 & Lesq. Muse. Bor.-Amer. Exsicc, n, 246 ; Lindb. Journ. Linn. 

 Soc. xiii. 70. Leskea parmda, Hampe. C. picsillus, Hook. & 

 Wils. in Drumm. Muse. Amer. (Coll. XL), n. 80 ; Wilson, 

 Hook. Journ. Bot. (1842) iv. 421, t. 25, A. Anisodon acuti- 

 rostris, Schimp. in Bryol. Eur. Anisodon, 4. 



