152 EVANS 



Luzon. In this species the inflorescence is also dioicous and 

 the leaves show 2 or 3 rows of small ocelli in addition to the 

 large basal ocellus. The underleaves are also characterized 

 by spreading divisions, each composed of 3 cells. Unfortu- 

 nately the female inflorescence of L.foliicola is unknown, but 

 its acuminate, acute or apiculate leaves will at once separate it 

 from L. subacuta, and its long antheridial spikes, bearing from 

 10 to 12 pairs of bracts, offer a second distinguishing character. 



9. DREPANOLEJEUNEA TENUIS (Reinw. Bl. & Nees) 



Schiffn. 



(PI. VII, figs. 10-19.) 



Drefanolejctmea tenuis (Reinw. Bl. & Nees) Schiffn., Consp. 



Hepat. Archip. Indici 280. 1S98. 1 



Pale yellowish green, not glossy, growing scattered or in 

 thin depressed mats ; stems prostrate, 0.035 mm - m diameter, 

 rather loosely adherent to the substratum, sparingly and irregu- 

 larly branched, the branches widely spreading, usually with 

 smaller leaves than the stem but otherwise similar ; leaves dis- 

 tant to subimbricated, the lobe obliquely spreading to suberect, 

 slightly convex but with the apex usually strongly reflexed, 

 more or less falcate especially when flattened, ovate-lanceolate, 

 0.3 mm. long, 0.14 mm. wide, attached by a short and almost 

 longitudinal line of insertion, antical margin straight or slightly 

 incurved near the base, then strongly outwardly curved to the 

 apex, sometimes arching partially or wholly across the axis, 

 sometimes entirely free from it, postical margin more or less 

 incurved, apex long-acuminate, usually tipped with from 2 to 4 

 cells in a single row, margin minutely and irregularly crenu- 

 late or denticulate from projecting cells, usually but not always 

 bearing from 1 to 5 more distinct teeth between the antical base 

 and the apex; lobule strongly inflated throughout, ovoid, 0.17 

 mm. long, 0.0S mm. wide, keel strongly arched, forming a 

 continuous line with postical margin of lobe, roughened from 

 projecting cells, free margin involute to or beyond the apex, 

 sinus lunulate, apical tooth strongly curved, hyaline papilla in 

 a distinct depression ; leaf-cells plane to strongly convex, aver- 



1 The synonymy of the species is here given in full. 



