346 48. POLYPODIUM, §§§§§§ GONIOPIILEBIUM. 



br., and several similar lateral ones on each side, the upper ones broadly adnate 

 to the rachis at the base ; texture subcoriaceous ; rachis and both sides naked ; 

 main veins J in. apart ; areoke and sort in rows of 4-G between the midrib and 

 edge.— if^-. ,S>. 5. 2^. 27. 



Hab. Guatemala to Guiana and Galapagos. — Differs from the next by its more herba- 

 ceous texture and adnate upper pinnae, P. Richanli, Klotzsch, is a pubescent form. 



259. P. (Gonioph.)/ra«?w«/b?«M?w, Jacq. ; r/M^owie stout, clothed with deciduous, 

 spreading, dark-brown, linear-subulate scales ; St. 1-2 ft. 1., tirm, erect, naked ; 

 fr. 2-4 ft. 1., 12-18 in. br., witli numerous distinct jowzmce. on each side, which are 

 4-9 in. 1., 1-2 in. br., the apex acuminate, tlie edge entire, the base narrowed ; 

 texture subcoriaceous ; both sides naked ; main veins \ in. apart ; areolce and sori 

 in series of 6-8. — Hk. Sp. 5. p. 26. 



Hab. Columbia to Brazil and Peru. — P. rhizocaidon, Willd., is a wide-scandent variety, 

 thinner in texture than the ordinary form, and thus intermediate between it and the 

 preceding. This includes several species of cultivators. 



260. P. (Gonioph.) menisciifolium, L. & F. ; st. 1-2 ft. 1., firm, erect, naked ; 

 fr. 2-3 ft. 1., 1 ft. or more br., with an entire terminal pinna 6-9 in. 1., 1^-2 in. 



br., and numerous similar ones on each side, all nan-owed to the base ; texture 

 subcoriaceous ; rachis and both sides naked ; main vei7is ^ in. apart ; areolce and 

 sori in rows of about 4, the latter immersed and prominent on the upper side. — 

 m. >Sp. 5. p. 27. 



Hab. Panama, Trinidad, Erazil. Probably neriifolium, var. 



** Under surface densely clothed with small scales. Lepicystis, J. Sm 



Sp. 261—263. 



261. P. (Gonioph.) incanum, Sw. ; rJiizome woody, wide-creeping, the scales 

 small, dense, dull-brown, fibrillose ; st. 1-4 in. 1., firm, erect, furfuraceous •,fr. 2-4 

 in. 1., 1-1^ in. br., cut down to the rachis into subdistant spreading entire blunt 

 pinncB 1-1| lin. br., dilated at the base ; texture coriaceous ; under side densely 

 scaly ; veins united or frequently free ; sori uniserial. — Hk. Sp. 4. p. 209. P. 

 Eckloni, Kze. Hk. I. c. 



Hab. Ohio to Uraguay and Chili ; Cape Colony, Natal, Zambesi-land. 



262. P. (Gonioph.) lepidopteris, Kze.; rhizome sioxit, wide-creeping, densely 

 clothed witii grey or reddisli scales ; st. 1-4 in. 1., rigid, erect, densely scaly ; 

 //'. 6-18 in. 1., li-3 in. br., cut down to the rachis into horizontal entire pinna; 

 2-3 lin. br., the lower reduced very gradually ; texture very thick ; both sides 

 clotlied, the lower very thickly, with ferruginous or white hairs and scales ; veins 

 hidden; sori copious. —//>i-. Sp. 4. p. 212.— /3, F. scpultum, Kaulf. ; fr. ovate- 

 lanceolate ; lower pinnw scarcely reduced.— y, P. rufulum, Presl ; scales of 

 rhizome bright reddish-brown ; 2>innce § in. br., blunt, much twisted. 



Hab. Mexico to Galapagos, Peru, and Rio Janeiro. • 



263. P. (Gonioph.) sqtiamatum, L. ; rhizome stout, wide-creeping, clothed with 

 adpressed lanceolate scales; st. 6-12 in. 1., rigid, erect, scaly ; /n 6-12 in. 1., 

 2-4 in. br., cut down nearly or quite to the rachis into entire bluntish jnnncB 

 1-2 in. 1., 1^-3 lin. br., with a considerable space between them, dilated and 

 often united at the base ; rachis and under surface densely coated with minute 

 membranous ovate-acuminate squarrose scales ; veinlets obscure ; sori large, 

 copious. — Hk. Sp. 4. jy. 209. 



ITab. West Indies and Mexico to Peru.— P. tridena, Kze., from the Galapagos, appears 

 to be a luxuriant state of this with forked pinna?. 



