8 



and from one to several pairs of similar, spreading, lateral ones, which are 4-8 in. 1. and 1-2 in. w. ■ 

 segments very numerous, close, £-1 in. 1. in. w. dimidiate, entire, superior edge curved or sublunate' 

 under straight or decurved. inner truncate and parallel with the angular sharp edged rachises, the ter- 

 minal one large deltoid-acuminate ; veins forked, flabcllate, not reaching the edge ; sori continuous 

 along the upper and outer margin, involucre narrow, rourh exceeded by the indusaeform margin. 



Infrequent, gathered by Lambert, Wilson, March and Miss Taylor, by the last in Portland. A 

 highly variable species, the smaller states being distinguished only from guiauensis by ihe sharp angled 

 square stipes and rachises. The Jamaica specimens I have seen all belong to the variety L horizontalis 

 Hook, and have few pinnae about 1 in. w. 



2. L. guianensis, Dry. — Rootstock repent, fasciculate, finely sculy ; stipites erect, from a few 

 inches to \\ ft. 1. straw or brown coloured, the face channelled, and back rounded ; fronds (pinnate or) 

 bipinnate, light or dark green, rachises like the stipites ; lateral pinnae few or several much shorter or 

 as long as the terminal one which is ^-1 ft. 1. and about 1 inch w. ; segments close, very numerous, \ 

 in. 1. \ in. br. dimidiate, the upper margin much curved, the under less so or nearly straight, the inner 

 truncate ; veins close, forked, flabellate ; sori submarginal, continuous along the upper and outer edge; 

 the narrow involucre exceeded by the indusa;form margin. 



Infrequent, apparently confined to the western parishes at 2,000— 3,000 ft. alt. where it has been 

 gathered by Purdie, Orth and Sherring — by the last at Bull Head. Equally as variable as trapezi 

 formis when the continental states are included. Jamaica specimens are usually either simple in the 

 blade, or with firm short branches at the base. 



4. L. stricta, Dry. — Rootstock shortly repent and finely scaly; stipites slender, erect, very short 

 or several or many in. 1. glossy chestnut brown ; fronds erect, very stiff and coriaceous, \ \\ ft. 1. 

 in. w. simply pinnate, or bipinnate by the presence of 1-3 pair of lateral branches at the base which 

 grow erect in a line with the much longer central one ; rachis castaneous, rounded on the back, face 

 flat; segments very numerous, close or imbricated, forming a quarter of a circle in shape, 2-3 li. w. 

 each way ; the upper ones gradually reduced till they become minute ; veins forked, flabellate ; sori 

 marginal, continuous ; involucre almost as wide as the reflexed indusaeform margin. 



Western parishes with the same altitudinal range as guianemix, from which it is distinguished by 

 the much stifler narrower blades, an 1 smaller often convex segments. 



