- 8 9 - 
72. Hedwigia albicans viridis (B. & S-.) Limpr. (. Hedwigia ciliata vvridis ). 
Rock Creek. 
73. Homalotheciella subcapillata (Hedw.) Card, in The Bryologist, 
March, 1904, p. 31. Homalotheciella * Card, in Bull. Herb. Boiss. 
Vol. 7, p. 374, 1890. Burnettia Grout in The Bryologist, July, 1903, 
p. 65. [Homalothecium subcapillatuni) Rock Creek; Brightwood; 
Arlington; Great Falls, Maryland. 
74. Hypnum arcuatum Lindb. (. Hypnum patientiae). Road to Sligo. 
75. Hypnum chrysophyllum Brid. Rock Creek. 
76. Hypnum (Limnobium) Closteri Aust. See Cheney, N. Am. Species of 
Amblystegium in Bot, Gaz. Oct., 1897, p. 241, where Amblystegium 
Holzingeri R. & C. is reduced to Hypnum Closteri. In a ravine on 
the Virginia side of the Potomac, above the Georgetown Bridge. 
77. Hypnum curvifolium Hedw. Rock Creek; Arlington: Blagden’s Run. 
78. Hypnum fertile Sendt. Rock Creek. 
79. Hypnum hispidulum Brid. Road to Sligo; Mt. Pleasant; Arlington. 
(On this plant there are papillae on the under surface of the leaves.) 
80. Hypnum polygamum Sch. Arlington. 
81. Hypnum reptile Rich. Rock Creek. 
82. Isopterygium micans (Sw.) E. G. Britton in The Bryologist, July, 1902, 
p. 67. ( Raphidostegium micans; Plagiothecium micans ) Rock 
Creek. 
83. Leptobryum pyriforme (L.) Sch. Rock Creek. 
84. Leskea arenicola Best in The Bryologist, Nov., 1903, p. 97, reprinted 
from Bull. Torr. Bot. Club, Sept., 1903. Spencerville, Maryland. 
85. Leskea gracilescens Hedw. Arlington. 
86. Leskea obscura Hedw. Rock Creek. 
87. Leskea polycarpa Ehrh. Banks of the Potomac. 
88. Leucobryum glaucum (L.) Sch. Catholic University grounds. 
89. Leucobryum minus Hpe. Rock Creek: Bladensburg Road. 
90. Leucodon julaceus (L.) Sulliv. Rock Creek: Spencerville, Maryland. 
91. Mnium affine Bland. Glen Echo: Road to Sligo. 
92. Mnium cuspidatum (L. ex. p. , Schreb.) Leyss. Arlington; Rock Creek; 
Cabin John’s. 
93. Mnium punctatum (L., Schreb.) Hedw. Rock Creek; Banks of the 
Potomac. 
94. Mnium stellare Reich. Rock Creek. 
95. Neckera pennata (L.) Hedw. Spencerville, Maryland. 
96. Orthotrichum Braunii B. & S. Rock Creek. 
97. Orthotrichum Schimperi Hamm. ( Orthotrichum fallax Sch.); Sol- 
diers’ Home grounds. 
98. Orthotrichum cupulatum Hoffm. ( Orthotrichum strangulatum P, 
B.). Spencerville, Maryland. 
99. Orthotrichum Ohioense Sulliv. Rock Creek. 
100. Phascum cuspidatum Schreb. var. Agricultural Department grounds. 
*See Note Page 91. 
