132 Evans: Hepaticae of Bermuda 



20. Euosmolejeunea opaca (Gottsche) Steph. On trees and 

 rocks, Paynter's Hill (Hozve). 



2 1. Crossotolejeunea bermudiana sp. nov. (see description 

 below). On the ground and on rocks, Flatts (Coe). Paynter's 



Vale (Mrs. Br it tori). 



22. Jubula pennsylvanica (Steph.) Evans. Paynter's Hill 



(Howe). A few sterile fragments only, but apparently referable 



to this species. 



23. Frullania squarrosa (R. Bl. & N.) Dumort. On roots 

 of mangrove, Walsingham (Howe). Cave, Paynter's Vale (Mrs. 



Brit ton). 



It w r ill be seen from the species listed that over 65 percent. 

 are Jungermanniaceae and that the others are equally divided be- 

 tween the Marchantiaceae and the Metzgcriaceae. The Ricaaceae 

 are as yet unrepresented. Of the Jungermanniaceae more than 



half belong to the Jnbiileae. 



The flora on the whole is most closely related to that found in 

 the eastern part of North America, thirteen species being com- 

 mon to Connecticut and the same number to Florida. At the 

 same time it will be noted that twelve of the species occur in the 

 British Isles and that about as many have been reported from the 

 West Indies. If, however, species are excluded which are almost 

 cosmopolitan, such as Marchantia polymorpha and Rebonlia Jiem- 

 isphaerica, it will be found that the others are nearly all distinctly 

 southern or even tropical in their distribution. The subtropical 

 character of the flora is also illustrated by the relatively large 

 number of the Jubulcae. 



Crossotolejeunea bermudiana sp. nov. 



Yellowish-green, varying to pale-green and becoming brownish 

 with age, growing in depressed tufts: stems 0.08 mm. in diameter, 

 prostrate and loosely adherent to the substratum, sparingly and 

 irregularly branched, the branches widely spreading : leaves dis- 

 tant to loosely imbricated, the lobe widely spreading, more or 

 less convex and sometimes inflexed at the apex, falcate, 0.5 nim. 

 long, 0.4 mm. wide, outer portion broadly orbicular-ovate, ab- 

 ruptly dilated from a narrow basal region, antical margin straight 

 or slightly incurved near the base, then strongly outwardly curved 

 to the apex, arching partially or wholly across axis, postical 



