Evans : Hepaticae of Puerto Rico 287 



Lejemiea {Harpalejejinea) patcntissima Steph. Hedwigia 27: 

 288. 1888. 



Dark olive -brown, scattered : stems 0.08 mm. in diameter, 

 irregularly pinnate, the branches obliquely spreading, not micro- 

 phyllous : leaves loosely imbricated, the lobe subsquarrose, 

 convex, strongly falcate, broadly ovate or subrotund beyond the 

 lobule, 0.35 mm. long, 0.3 mm. wide, antical margin straight or 

 slightly incurved near base, then very strongly outwardly curved to 

 the apex, postical margin much shorter, more or less curved, apex 

 broad, rounded or apiculate, margin entire or vaguely crenulate 

 from projecting cells ; lobule of the normal type, strongly inflated, 

 narrowly ovate in outhne, 0.17 mm. long, 0.08 mm. wade, strongly 

 curved forward in the outer part with a narrow tubular opening 

 into the water-sac, keel somewhat arched, slightly roughened, 

 forming approximately a right angle with the postical margin of 

 the lobe, free margin of lobule slightly curved, apical tooth rather 

 long and tapering, abruptly curved at the base, normally reaching 

 to the end of the keel, papilla in a distinct depression, sinus short 

 and shallow; cells of lobe averaging 13^ at the margin, i8/z in 

 the middle and 28 x 18// at the base, trigones large and often con- 

 fluent, triradiate and with truncate rays, intermediate thickenings 

 occasional, also truncate, walls often appearing uniformly thick- 

 ened on account of the minute pits ; ocellus when present single, 

 at base of lobe, 41x25/^: underleaves distant, appressed to dis- 

 tinctly squarrose, orbicular, 0.2 mm. long, bifid about one third 

 with an acute sinus and erect or subconnivent, obtuse to acute 

 lobes, margin entire or nearly so : inflorescence dioicous : 9 inflor- 

 escence innovating on one side ; bracts complicate, obliquely 



spreading, the lobe very much as in the leaves with the antical 

 margin much longer than the postical, 0.7 mm. long, 0.5 mm. 

 wide, lobule (in single specimen seen) obovate, 0.5 mm. long, 0.2 

 mm. wide, broad and apiculate at the apex, entire ; bracteole con- 

 nate on both sides, ovate, 0.6 mm. long, 0.4 mm. wide, bifid about 

 one third with narrow sinus and erect lobes, acute or obtuse at the 

 apex; perianth almost immersed, obovoid, 0.7 mm. long, 0.45 

 mm, wide, beak short, horns short and rounded, scarcely flattened, 

 suberect : antheridial spike (the only one seen) occupying a short 

 branch ; bracts in three pairs, shortly and subequally bifid with 

 rounded or obtuse lobes ; bracteole single at base of spike, similar 

 to the underleaves. (Plate 20, figures 19-26,) 



Mixed with other bryophytes. Puerto Rico, Sclnmnecke. The 



species has apparently not been collected on the island a second 



time. It has, however, been found in Cuba by Wright, and a few 



fragments of it occur in the writer's set of the Hcpaticm Ctihenses, 



