3G0 46. POLYPODIUM, §§§§§§§§§ PHYMAT0DE8. 



main veins very distinct, trie areolse hidden ; upper surface with close small 

 dirty-white dots ; sort much immersed, in single rows between the main veins, 

 8-9 between the midrib and edge. — P. crassinervium, Bhime. Hk. Sp. 5. p. 63. 



Hah. Java. 



838. P. (Phym.) crassifolium, L. ; rhizome woody, short-creeping, the scales 

 ovate-acuminate, dull-brown ; st. 2-G in. 1., strong, erect ; fr. 1-3 ft. 1., 1-5 in. 

 br., narrowed gradually to both ends, the edge entire ; texture very coriaceous, 

 the upper side with scattered small white dots ; main veins very distinct, the 

 intervening areolse hidden ; sori in single rows between the main veins, 2-9 in a 

 row between the midrib and edge. — Hk. Sp. 5. p. G2. 



Hab. West Indies and Mexico to Brazil and Peru, common. — Very variable in the 

 breadth of the frond and compactness of the sori. P. anocarpum (Kze.) and P.Vittaria 

 (Mett.) are not more than ^-1 in. br., with the sori in 2 to 4 rows ; P. albo-punctatissi- 

 mum, J. Sm., is a glaucous much-dotted form, with less distinctly-raised veins than 

 usual. 



339. P. (Phym.) membranaceum, Don ; rhizome stout, the scales ovate, spread- 

 ing, membranous, lurid-green ; st. 1-4 in. 1., firm, erect ; fr. 1-3 ft. 1., 2-6 in. br., 

 the edge entire or repand, both ends narrowed gradually ; texture very thin, 

 membranous ; main veins distinct, with very copious fine areoloe with free 

 veinlets between them ; sori mostly in two rather irregular rows near the main 

 veins. — /3, P. grandifoliiim, "Wall. ; fr. larger ; sori more copious and scattered 

 irregularly. — Hk. Sp. 5. p. 70. 



!Hab. N. India (up to 5-6,000 ft.) to Ceylon, common. 



840. P. (Phym.) heterocarpiim, Blume (non Mett.) ; rhizome firm, wide-creep- 

 ing, the scales squarrose, linear, dull-brown ; st. 3-4 in. 1., firm, erect ; fr. 1-2 

 ft. 1., 1^-3 in. br., entire, narrowed to both ends very gradually ; texture firm ; 

 both sides naked ; main veins distinct to the edge ; areoloe copious, with free 

 veinlets ; sori in rows of 4 to 6 near the main veins. — P. Zollingerianum, Kze. — 

 /3, P. Zippellii, Blume ; sori smaller, scattered irregularly. — Hk. Sp. 5. p. 72. 



Hab. N. India, Ceylon, Java, Borneo, Philippines. — Like the last in habit, but firmer 

 in texture, and the two forms of each corresponding to one another. 



341. P. (Phym.) irioides. Lam. ; rhizome stout, the scales dark-brown, ovate, 

 obtuse ; fr. sessile or subsessile, 1-3 ft. 1., 1-3 in. br., narrowed gradually to both 

 ends, the edge entire ; texture subcoriaceous ; both sides naked ; main veins fine, 

 but distinct to the edge, connected by cross veinlets larger than the others, with 

 copious fine areolae in the interspaces, including fi-ee veinlets ; sori very small 

 and copious, scattered irregularly. — Hk. Sp. 5. p. 67. PiL Ex. t. 4. Microsorium, 

 Link. Acrostichum punctatum, Linn., oldest name. 



Hab. N. India and Chusan to Fiji, Isle of Pines, and N. S. Wales, Mascaren Isles, 

 Zambesi-land, Natal, Angola, Guinea Coast. 



342. P. (Phym.) muscefolium, Blume ; rhizome woody, the scales ovate, dull- 

 brown ;/r. 1-3 ft. 1., 3-4 in. br., the point acute or bluntish, the lower part broadly 

 winged to the very base ; texture coriaceous ; both sides naked ; main veins very 

 distinct, connected by distinct arched veinlets, with copious fine areolse with free 

 veinlets in the interspaces ; sori small, very numerous, sometimes covering nearly 

 the whole surface. — Hk. Sp. 5. p. 68. 



Hab. Malay Isles. — Very near the last, but the veins more distinct. 



343. P. (Phym.) hemionitidcum, Wall. ; rhizome woody, hypogseous ; st. 1-G 

 ill. 1., firm, erect ; fr. 9-18 in. 1., 2-3 in. br., narrowed to both ends, the edge 



