﻿18 Howe: The Anthocekotaceae 



specimen is marked " R. Mts., Hall," but this manner of giving 

 the habitat of Hall's Oregon Hepaticae is observed elsewhere in 

 the Austin collection. 



Anthoceros fusiformis stomatifer (Aust 



-eros stomatifer Aust. Bull. Torr. Bot. Club, £ 

 Capsule slender, 4-9 cm. X .25 



1875. 



mu 



twisted in drying ; spines of the spores sometimes exceeding 3/i 

 in length ; pseudo-elaters rather broader. 



Oregon and northward. 



A. fusiformis stomatifer is, in some respects, intermediate be- 

 tween A. fusiformis and A. pnnctatus. It seems to have nothing 

 in thallus, involucre, or number of stomata on the capsule-wall, to 

 distinguish it from A. fusiformis ; and is scarcely distinguishable 



pnnctatus 



1 



nvolucre, the 



longer capsule, more twisted valves, and the rather larger spores 

 with much more abundant spines. Intergrades perfectly with 

 the genuine A. fusiformis. The probable type of A. stomatifet 

 Aust.. marked " Rockv Mts., Hall" is in Herb. Pearson. 



9. Anthoceros Ravenelii Aust. Bull. Torr. Bot. Club, 6: 28. 



1875. 



Anthoceros Lescioii Aust. /. c. 6 : 28. 



Anthoceros Joorii Aust. I.e. 6: 29. 



Anthoceros Olneyi Aust. I.e. 6 : 29. 



Thallus suborbicular, 6-16 mm. broad, light green, blackening 

 with age, more or less rugose and foveolate, sometimes verrucose- 

 punctate and lamellate, laciniate or subradiately dissected, with 

 oblong-flabelliform, crenate or variously lobed, occasionally sub- 

 erect segments, 8-15 cells thick in axile parts, 3-stratose at 

 margin, with internal lacunae; surface-cells somewhat distinct, 

 subquadrate, oblong, or pentagonal, 25-50 X 18-30 it, with rather 

 small chloroplast: monoicous: involucres frequently geminate, 

 short-cylindrical, .8-2.5X4-1 mm., smooth or lightly striate, 

 usually a little dilated toward the truncate, crenate or repand- 

 dentate, often narrowly scarious mouth : capsule fuscous, clavate- 

 cylindrical, 8-20 X -3~-8 mm., thick-walled, with numerous sto- 

 mata, the valves slightly flexuous ; columella often at first strongly 

 appendiculate, becoming naked ; spores scarcely angled, black or 

 fuscous, 70-100 a in maximum diameter, covered throughout with 

 very numerous short blunt papillae, these sometimes confluent into 



