288 Howe : Notes on American Hepaticae 



added to its distinguishing characters. All the perianths seen are 

 on very short postical branches. 



III. Arachxiopsis 



Arachniopsis diacantha (Mont.) 



Jiingermannia dia^antha Mont. Ann, Sci. Nat. IV. 5 : 349. 

 1856. 



Arachniopsis coactilis capillacea Spruce, On Cephalozia, 85. 

 1882; Trans, and Proc. Bot. Soc. [Edinb.] 15: 356. 1885. 



Leaves mostly rigid, composed of 4-6 cells, these 4-7 times 

 as long as broad. 



Peru : Weddell, Spruce. 



Jungermannia diacantJia Mont, is represented in the Montagne 

 herbarium, now preserved in the Museum d'Histoire Naturelle of 

 Paris, only by two small sterile fragments fastened to pieces of 

 mica. This original material, which we have seen through the 

 courtesy of Mons. Hariot, agrees perfectly, so far as it goes, with 

 the specimen from Mt. Campana, Peruvian Andes, distributed by 

 Spruce as Arachniopsis capillacea in his " Hepaticae Spruceanae : 

 Amazonicae et Andinae." Montagne's description of the leaves 

 as "spiraliter 5/1 circa caulem dispositis " was evidently an error, 

 due, it may be, to a torsion of the stem. 



Arachniopsis confervifolia (Gottsche) 

 Jiingermannia confervifolia Gottsche, Hepaticae Cubenses 

 Wrightianae. 



Cephalozia cotfervifolia Aust. Bull. Torrey Club, 6 : 302. 



1879. 



Arachniopsis coactilis Spruce, On Cephalozia, 85. 1882. Trans. 



and Proc. Bot. Soc. [Edinb.] 15: 355. //. 13. 1885. Exclud- 

 ing var. capillacea. 



Leaves often flaccid, composed of 6-14 cells, these 2-3 times 

 as long as broad. 



Cuba : Wright ; South America : on the tributaries of the 

 Amazon, Spruce. We have little hesitancy in considering Arach- 

 niopsis coactilis Spruce a synonym of the Cuban Jnngcrmannia con- 

 fervifolia Gottsche. The latter is more flaccid, showing a relation 

 to the South American specimens somewhat analogous to that 



