186 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



BRYACE/E. 

 BRYUM BIMUM Schreb. 

 BRYUM ARGENTEUM Linn. 

 BRYUM PROLIFERUM (L. ) Sibth. 

 LEPTOBRYUM PYRIFORME (L.) Wils. 



FUNARIACE^E. 



FUNARIA HYGROMETICA (L.) Sibth. 

 FUNARIA HYGROMETICA PATULA Bf. & Sch. 



FUNARIA FLAVICANS Michx. 

 PHYSCOMITRIUM PYRIFORME (L.) Brid. 



TORTULACE.E. 

 LEERSIA STREPTOCARPA (Hedw.) Lindb. 



TORTULA MURALIS (L. ) Hedw. 



BARBULA HUMILIS Hedw. 



BARBULA TORTUOSA (L.) Web. & Mohr. 



MOLLIA VIRIDULA (L.) Lindb. 



DICRANACE.E. 

 LEUCOBRYUM GLAUCUM (L. ) Br. & Sch. 



DICRANODONTIUM ViRGiNicus, E. G. Britton, Fl. W. Va., 488 (1892) 

 Plate. 



Monongalia: On sandstone boulder along a woodland path, 

 Tibb's Run (Millspaugh, 1635). 



Plants bright glossy green, stems matted below by a red tomen- 

 tum, leafy nearly to apex, denudate roughened above, with a few 

 leaves at summit; leaves erect or secund, straight or curled and 

 twisted, often 5 mm. long, narrowly subulate, from a short, thick 

 base, caducous ones with a long, slender, smooth point; persist- 

 ent ones serrate, blade inflexed, cells densely chlorophyllose, filled 

 with oil globules, those of the basal angles clear. Dioecious, the 

 antheridia terminal in conspicuous heads, bracts brown at base, 

 apex subulate, serrate; perichaetial bracts 3-4 mm. long, from a 

 short base, suddenly subulate, dentate at apex; pedicels lateral 

 by the growth of innovations, 1^-2 cm. long, pale, glossy yellow, 

 twisted in two directions, very slender, arcuate when young, be- 

 coming erect before capsules mature. Capsule cylindric* ribbed 

 only at the mouth, 1^-2 mm. long, beak straight or curved, 

 shorter than the capsule, peristome bright red, not deep set, teeth 

 split unequally to middle, striolate at base, pale and granulose 

 above, annulus none, spores small, calyptra cucullate, 2 mm. 

 long, beaked, entire. Maturing in summer. 



Differs from European specimens of D. longirostre collected by 

 Seringe; in the longer, paler, more slender, scarcely arcuate ped- 

 icels, longer capsules, peristome not deep set, and teeth split 

 only to the middle, more united than figured in the Bryologia 



