Underwood and Lloyd: Lycopodium 113 



scattered leaves and contracted sporophyls ; leaves arcuate, lanceo- 

 late, acuminate, I— 1.3 cm. long by 1-1.2 mm. wide, unsymmetri- 

 cal, the midrib nearer one margin, widely spreading, distinctly 

 curved, twisted at the base so that the blade lies in the plane of the 

 axis ; sporophyls twisted like the leaves, linear, much smaller at 

 the ends of the branches, but ultimately attaining the size of the 

 smaller leaves; sporangia reniform, 1.5 mm. wide by 1 mm. deep, 

 much exceeding the leaves in width and thus appearing very con- 

 spicuous in the mass of foliage. 



J< 



Mr. J 



linifolium 



able as a specific name in the genus, we are pleased to dedicate it 

 to the memory of this most assiduous of students of the pterido- 

 phytes of the British colonies in America, whose collection and 

 critical notes and publications add so much to our exact knowl- 

 edge of the tropical pteridophyte flora of America. 



23. Lycopodium tenuicaule sp. no v. 



A lax slender epiphyte with delicate scattered leaves. Stems 

 springing from a small cluster of roots, 20-30 cm. long, loosely 

 branched, smooth, 1 mm. thick, the shoots dorsiventral by the 

 twisting of the leaves at their bases ; leaves 7-9 mm. long by 1.5 

 mm. wide, lanceolate, broadest at the middle or just above, acute, 

 slightly unsymmetric, entire, twisted at the base so as to bring the 

 blade to the plane of the axis, widely spreading, scattered, all 

 sporangiate except on the oldest part of the stem ; midrib slender, 

 scarcely evident beyond the middle of the leaf : sporangia reni- 

 form, 1.3 mm. wide by 1 mm. deep. 



Dominica : Mt 



Mountains. Percy Wilson 



This delicate and graceful species which has appeared from two 

 rather distant and distinct stations is very unlike any other West 

 Indian species, forming a peculiar type with no near congeners. 



§ 2. LEPIDOTIS 



A 



naturally into four groups which are widely separated from each 

 other in habit. We may separate these groups synoptically as 

 follows : 



