54. MENISCIUM. 391 



fr. 6-9 in. 1., 2-3 in. br., oblong-lanceolate acuminate, the base cordate and 

 sometimes auricled, the edge crenate ; fertile fr. similar, but smaller ; texture 

 subcoriaceous ; veins beneath pubescent, main veins \ in. apart ; areolce 8-12 

 between the midrib and edge. Hk. Sp. 5. p. 162. Fil. Ex. t. 83. 



Hab. Chusan, Hong-Kong, and Formosa. Kunze considers this a simple form of 

 M. tT'iphyllum,. 



2. M. giganteum, Mett. ; st. 1 ft. 1., dark-brown, slightly pubescent ; fr. 

 l|-2 ft. 1., 4 in. br., elongate-oblong, narrowed rather suddenly at both ends, 

 the edge slightly repand ; texture papyraceous ; veins ^ beneath nearly naked, 

 main veins in. apart ; areolce 30-40 between the midrib and edge. Hk. Sp. 5. 

 p. 163. 



Hab. Peru, Lechler, 2292. 



** Frond pinnate. Sp. 3-10. 



3. M. triphyllum, Sw. ; rhizome firm, wide-creeping ; st. slender, substra- 

 mineous, slightly pubescent, of the barren frond 4-6 in., of the fertile frond 1 ft. 

 or more 1. ; fr. with an oblong-lanceolate terminal pinna 4-6 in. 1., 1-1 f in. br., 

 the base cuneate or rounded, the edge repand, and 1-2 similar but smaller ones 

 on each side, the fertile ones smaller than the barren ones ; texture subcoria- 

 ceous ; veins beneath slightly pubescent, main veins ^ in. apart ; areolce 6-9 

 between the midrib and edge. Hk. Sp. 5. p. 163. Hk. & Gr. t. 120. 



Hab. Himalayas to Ceylon, S. China, and Malaccas. 



4. M. Thwaitesii, Hk. ; rhizome firm, wide-creeping ; st. 9-12 in. 1., sub- 

 stramineous, nearly naked ; fr. 8-10 in. 1., 4-5 in. br., subdeltoid, the apex 

 acuminate, crenato-pinnatifid, below this several blunt linear-oblong subentire 

 pinnce, the lowest the largest, distinctly stalked, 2-3 in. 1., f in. br., the edge 

 bluntly, not deeply, lobed, the base narrowed suddenly ; texture herbaceous ; 

 colour dark-green ; midrib beneath pubescent ; main veins 1 lin. apart ; areolce 

 and sori 4-5 in the lower pinnae between the midrib and edge. 



Hab. Ceylon, C. P. 3145. 



5. M. pauciflorum, Hk. ; st. tufted, 6-12 in. 1., glossy, brownish ; fr. 12-18 

 in. 1., 6-8 in. br. ; pinnce numerous, spreading, ^-| in. apart, 3-4 in. 1., 2-3 lin. 

 br., narrowed very gradually from the middle to both ends, the edge sharply 

 toothed ; texture subcoriaceous ; rachis and both sides naked ; areolce in 1-2 rows 

 between the midrib and edge. Hk. Sp. 5. p. 164. 



Hab. Sierra del Crystal, West Tropical Africa, Mann, 1672. 



6. M. salicifolium. Wall. ; st. 1 ft. or more 1., stramineous or pale-brown, 

 glossy ; fr. 12-18 in. 1., 1 ft. br. ; pinnce numerous, f-l in. apart, 4-8 in. 1., 

 2^-f in. br., narrowed very gradually from the middle to both ends, the edge 

 nearly entire, the lowest the largest ; texture subcoriaceous ; rachis and both 

 sides glabrous ; main veins oblique, 1 lin. apart ; areolce 4-5 between the midrib 

 and edge. Hk. Sp. 5. p. 164. 2nd Cent. t. 90. 



Hab. Penang and Singapore. 



7. M. angustifolium, Will. ; st. subtufted, 6-18 in. 1., firm, erect, slightly 

 pubescent ; fr. 1^-2 ft. 1., 1 ft. br. ; pinnce spreading, 4-6 in. 1., J-f in. br., 

 narrowed gradually to a long acuminate point, the edge subentire, the base 

 cuneate, the lower ones often stalked ; texture subcoriaceous ; rachis and veins 

 beneath pubescent ; fertile pinnce much narrower than the barren ones ; main 

 veins 1 lin. apart ; areolce 4-6 between the midrib and edge. Hk. Sp. 5, p. 164. 



Hab. West Indies to Peru. 



