A. W. Evans — Hawaiian Hepaticm of the Tribe Juhuloideoe. 427 



Lejeunea Owaihiensis oi Gottsche, a plant which Stephani has placed 

 in Strepsilejeunea. 



1. Harpalejeunea pseudoneura sp. nov. 

 Plate L., figs. 1-9. 



Dioicous : plants pale green, closely appressed to substratum or 

 creeping among other hepatics : stems sparingly branched : leaves 

 subimbricated, the lobe widely spreading, falcate-ovate, acute and 

 usually somewhat decurved at apex, margins minutely crenulate or 

 subdentate ; lobule ovate. Innately truncate at apex, the apical tooth 

 curved so strongly as almost to touch end of keel, keel arched, cren- 

 ulate from papillose cells, free margin almost straight, strongly invo- 

 lute as far as apical tooth : underleaves obovate from a narrow base, 

 bifid about one half with erect or slightly spreading, obtuse or sub- 

 acute lobes and obtuse or lunulate sinus, entire or angular-uniden- 

 tate on sides : leaf-cells with slightly thickened walls, trigones 

 scarcely apparent, ocelli in a continuous line, running from the 

 base of lobe almost to apex : $ inflorescence borne on a short branch, 

 innovating on one side with a simple innovation ; bracts unequally 

 bifid, the lobe ovate, somewhat falcate (less so than leaves), acute, 

 crenulate and angular-dentate on margins, lobule ovate-lanceolate, 

 acute or apiculate, crenulate and usually angular-dentate ; bracteole 

 free, oval or ovate, bifid about one fourth with obtuse or subacute 

 lobes and narrow sinus, crenulate and often angular-dentate ; peri- 

 anth obovate, truncate and slightly retuse at apex, sharply five-keeled 

 in upper part, the keels rounded above and crenulate on margins 

 from papillose cells : $ spike terminal on a somewhat elongated 

 branch ; bracts in two to five pairs, subequally bifid with obtuse 

 or subacute lobes, crenulate on margins and keel ; bracteoles absent 

 from upper part of spike ; antheridia borne singly. 



Stems O-OS""" in diameter, lobes of leaves 0,35x0.15™", lobules 

 0.17 X 0.1 '"'°, underleaves 0.12 x 0.12'""\ cells at edge of lobe 14/* in 

 diameter, in the middle and at the base 16/a, ocelli 25xl6/u., lobe of 

 bract 0,45 x 0.2"™, lobule 0.25 x 0.13™™, bracteole 0.35 x 0.25"™, peri- 

 anth 0.85 xO.4™™. 



On trees or creeping among other hepatics. Oahu : Nuuanu and 

 Konahuanui (Cooke). 



The ocelli, which are found in several species of this genus, 

 usually occur in small numbers at the base of the lobe. Their 

 arrangement in a continuous line is an interesting character of the 



