80 BRYACEiE. [Campylopus. 



Gaz. iv. 150. Dicramcm suhleucogaster, Aust. Muse. Appal. 

 Exsicc. Suppl. 1, n. 470. 

 Hag. Southern Florida; common. 



9. 0. VirginicuS. Plants widely cespitose, tawny green; 

 stems short, flexuous, slender, nearly equally foliate : leaves 

 strict, erect-open, abruptly long setaceous-subulate from a sub- 

 quadrate-ovate base, canaliculate, minutely serrate on the mar- 

 gins; costa broad, striate, scabrous on the back or subserrate 

 at the apex ; cells of the areolation oblong and oval, hyalme, 

 rhomboidal-oblong or linear toward the middle, smaller above, 

 the basal much enlarged ; some of the apical leaves brittle, 

 truncate from a narrower base, deciduous, more convolute, longer 

 and gradually acuminate, entire and smooth on the back, with 

 cells shorter, hyaline, the basilar scarcely different and the costa 

 not distinct from the lamina. — Dicranum Virginicwn^ Aust., 

 Coult. Bot. Gaz. iv. 150. 



Hab. Biackwater Falls, West Virginia {J. Donnell Smith). 



From the remarks of the author, the slender stems are ahout 2 ra.m. 

 long, the young ones clothed with a delicate entangled white tomentum. 

 Aboi;t one-half of the expanded portion of the leaves is composed of large 

 hyaline cells; ascending along the costa, these gradually become chloro- 

 phyllose and smaller, while toward the margin they become much nar- 

 rower and longer; the basal cells although much enlarged are not inflated, 

 and there appear to be no true alar cells; the lamina rarely extends to the 

 middle of the subulate portion of the leaf. 



10. C. gracilicaulis, Mitt. Stems slender, 1 or 2 c. ra. long, 

 simple and radiculose in the lower part : lower leaves closely 

 appressed, the upper tufted, longer, spreading, narrowly lanceo- 

 late-acuminate from an elliptical base ; costa covering a third 

 part of the lamina and distinct to near the apex ; borders in- 

 curved, slightly denticulate above ; lower cells loose, oblong, 

 pellucid, gradually shorter, rhomboidal above ; inner ])ericha9- 

 tial leaves long, convolute at base, abruptly narrowed into a 

 narrow subulate hyaline-denticulate point : capsule immersed in 

 the comal leaves, oval, equal, scabrous at base: caly23tra fim- 

 briate. — Journ. Linn. Soc. xii. 83. 



Hab. South Florida {Austin). 



11. C angustiretis. Very like the preceding species in 

 aspect, differing in the lower leaves less appressed, the cells 

 much longer, sublinear, the alar dirty red, much contracted. — 

 Dicranum ang^istiretis, Aust., Coult. Bot. Gaz. iv. 150. 



Hab. With the preceding species and probably a variety of it. 



