A. W. Evans — Hawaiian Hepaticm of the Tribe JuhuloidecB. 433 



spreading, arching to about the middle of axis, falcate-ovate, 

 rounded or very obtuse at the apex, entire or minutely crenulate : 

 lobule ovate, strongly inflated, obliquely truncate or lunulate at apex, 

 apical tooth a slender apiculum, curved toward end of keel, keel 

 arched, free margin more or less involute as far as apex: underleaves 

 distant, orbicular, bifid about one half with acute or subacute lobes 

 and narrow sinus : leaf-cells with slightly and uniformly thickened 

 walls ; ocelli two or three near base of lobe, thin-walled : 9 inflores- 

 cence borne on a short, small-leaved, lateral branch, innovating on 

 one side with a short simple innovation ; bracts smaller than the 

 leaves, the lobe oblong to obovate, obtuse to subacute, entire, lobule 

 obovate, rounded or emarginate at apex, entire keel, narrowly winged 

 (on outer bract); bracteole obovate, bifid about one fourth with 

 obtuse or subacute lobes and sinus, entire; perianth not seen : 

 5 spike occupying a short lateral branch ; bracts in two or three pairs, 

 subequally bifid ; bracteole at base of spike small, the others wanting. 



Stems 0.09'"'" in diameter, lobes of leaves 0.4 x 0.35""", lobules 

 0.1x0.1'"'", underleaves 0.15 x 0.15'"'", cells at edge of lobe 9|U. in 

 diameter, in the middle 17/1., at the base 25 x 14//,, ocelli 40x21/a, 

 lobe of bract 0.35 x 0.1 7'^^'^^ lobule 0,2 xO.l-^"", bracteole 0.3 x 0.17"^"'. 



On Radula Javanica. Hawaii (Menzies). 



The description given above is drawn from a part of the type- 

 material kindly furnished me by Herr Stephani. Gottsche describes 

 the species as monoicous, but the fragmentary plants which I have 

 studied seem to be unisexual, so that possibly the inflorescence is vari- 

 able. According to Stephani* the perianth is four-keeled in the upper 

 half, the keels being blunt and projecting upwards beyond the short 

 beak. The same author also points out that C. octdata lacks the 

 curious inflated leaves or utriculi, usually found at the base of a 

 branch in species of this genus. It is not, however, unique in this 

 respect, as several species of tropical America, where the genus is 

 particularly well represented, show the same peculiarity. The 

 species is placed by Spruce in his subgenus Trachy-Lejeunea.] 



11. TRACHYLEJETJNEA (Spruce) Schiffu. 



Lejeunea subgenus Trachy-Lejennea Spruce, Hep. Amaz. et And. 



180. 1884. 

 Trachylejeunea Schiffn.; Engler & Prantl, Nat. Pflanzenfam. i^, 



126. 1893. 



Plants medium-sized, growing in depressed tufts or creeping 

 among other bryophytes, pale, becoming brownish or purplish with 



* Hedwigia, xxix, 76. 1890. f Hep. Amaz. et And. 181. 1884. 



