30. PELLiEA, §§§ PLA.TYLOMA. 151 



down over the sori. — Pteris, Cav. Swariz. Cheil., Mett. P. hirsuta, /jf«. Sp. 2. 

 p. 163. 



Hab. Chili and Mexico. 



31. P. (Alio.) marginata. Baker ; st. tufted, 3-9 in. 1., strong, erect, polished, 

 chesnut-brown, naked, slightly fibrillose towards the base ; /*•. 4-8 in. 1., 3-6 in. 

 br., subdeltoid, tri- or quadripinnatifid ; lowRr pinnoi usually much the largest ; 

 pinnl. on the lower larger than those of the upper side, the latter ] -2 in. I., 

 lanceolate-deltoid ; ult. aivisions linear-oblong with revolute edges, 1^-2 lin. 1., 

 ^ lin. br. ; texture subcoriaceous ; rachises and both surfaces naked ; sori confluent. 

 — Cheilanthes, Hi. Sp. 2. p. 105. — ,3, U. p^ramidalis. Fee, 8. Mem. t. 25 ; fr. lan- 

 ceolate ; pinncB secund, with long sometimes ^ in.) pendent slightly compound 

 pinnules. 



Hab. Tropical America, from Mexico and Jamaica southward to Peru and the Argen- 

 tine territory. The finest examples in the Hookerian Herbarium are from Salvin and 

 Godman's G-uatemalan collections, with the lowest pinnules more than 2 ia. 1., 1^ in. br. ; 

 but usually it is much smaller. 0. pyramidalis looks very different to the ordinary form, 

 but appears connected with It by intermediate stages. 



32. P. (Alio.) Barhlym, Baker ; st. 12-18 in. 1., strong, erect, naked, dark- 

 brown, polished ; fr. \ ft. or more 1., 9 in. br., deltoid, quadripinnatifld ; lowest 

 pinnce 6-8 in. 1., subdeltoid ; pinnl. on the lowest side the largest, with numerous 

 segm. on each side, which are cut down to the rachis into numerous linear ult. 

 divisions, 3 lin. I., 1 lin. br. ; texture coriaceSus ; rachis and both surfaces 

 naked ; sori running along the opposite edges of the gradually narrowing 

 segments, so that the broad pale-brown membranous invol, usually touch near 

 the top.— Cheil. Barklyse, Hk. MSS. 



Hab. Seychelles ; sent by Lady Barkly and Dr. Xirk. — This cornea nearest to the 

 broad-leaved form of P. angustifolia, but is much larger in size. 



§§§ Platyloma, J, Smith. Texture coriaceous, the veins usually/ hidden, the 

 ultimate segments broad and flat, the involucre so narrow that it is soon hidden hy the 

 fruit. Sp. 33-40. 



33. P. (Platy.) Bridgesii, Hk. ; st, 2-4 in. 1., wiry, erect, naked, bright 

 chesnut-brown, polished ; Jr. 4-6 in. 1., 1 in. or less br., linear, simply pinnate ; 

 pinncB 6 to 8 on each side, sessile, oblong, entire, obtuse, rounded or cordate at the 

 base ; texture coriaceous ; rachis naked and polished like the stipe, both surfaces 

 naked, glaucous-green ; veins hidden ; sori in a broad marginal line with the 

 much-wrinkled membranous edge of the frond protruding beyond it till full 

 maturity.— i^^. Sp. 2. jp. 238. t. 142. B. 



Hab. California. 



34. P. (Platy.) rotundifolia, Hk. ; rhixome stout, creeping, scaly ; st. 6-12 in. 

 1., stout, erect, more or less pubescent and clothed throughout with linear chaiFy 

 scales ; fr. 6-12 in. 1., 1-1^ in br., linear, simply pinnate ; pinnce 10 to 20 on 

 each side, short-stalked, oblong or roundish, entire, obtuse or mucronate at the 

 point ; texture coriaceous ; rachis densely scaly and tomentose, both surfaces 

 naked ; veins beneath hidden ; sori in a broad marginal line soon hiding tlie 

 involucre.— /i'A. Sp. 2. p. 136. Fil. Ex. t. 48. 



Hab. New Zealand andJNorfoIk^Island. 



35. P. {VlsAy. ) falcata, F6e; rhizome wide-creeping; st. 3-6 In. 1,, strong, 

 erect, more or less pubescent and scaly; fr. 6-18 in. 1., 1-2 in. br., linear-oblong, 

 simply pinnate ; pinnae 10 to 20 on each side, nearly sessile, \-l in. 1., -J-J in. br., 

 lanceolate or lanceolate-oblong, usually mucronate, often slightly falcate, 



