I - 



424 GO. ACROSTICHUM, ***** I1YMENOLEP1S, ****** PHOTINOPTERIS. 



glossy ; fr. 2-6 t. 1., 1-2 ft. br., the upper pinnce fertile, slightly smaller than the 

 barren ones, which are usually stalked, ligulate-oblong, 3 in. to more than 1 ft. 1., 

 |-3 in. br., the point acute or blunt, sometimes retuse with a mucro, the edge 

 quite entire, the base subcuneate ; texture coriaceous ; rachis and surfaces naked ; 

 areolce very small and copious, without free veinlets. Hk. Sp. 5. p. 266. 



Hab. Florida and Bermudas to Peru and South Brazil ; Polynesia ; Bengal, Hong- 

 Kong, and Formosa to Queensland, Seychelles, Mascaren Isles, Zambesi-land, Natal, 

 Angola, Guinea Coast. Includes five species of Fe"e. 



D. Frond bipinnate. Sp. 128. 



128. A. (Chrys.) polyphyttum, Hk. ; rhizome woody, wide-scandent ; st. 6-12 

 in. 1., firm, naked, jointed at the base ; barren fr. sometimes simply pinnate, 

 more usually several feet long, with pinnate pinnce 6-12 in. ]., 2 in. br. ; pinnl. 

 numerous on each side, 1 in. 1., J- in. br., sessile, lanceolate, sharply toothed ; 

 texture herbaceous ; rachis and surfaces naked ; areolce hexagonal, without free 

 veinlets ; fertile pinnl. stalked, f-| in. 1., J in. br. Hk. Sp. 5. p. 269. Loma- 

 gramme, Brack. 



Hab. New Hebrides and Fiji. In general habit and in its articulated pinnae this quite 

 agrees with A. Wilkesianum. A. pter&ides, R. Br., from Tropical Australia, has an ebe- 

 neous naked stem 1 ft. 1., and distant Lomarioid fertile pinnae, the lower ones again 

 sparingly pinnate, but the barren frond is not known. 



***** Hymenolepis, Kaulf. Fronds simple, uniform, bearing the fruit on the 

 contracted apex. Sp. 129-130. 



129. A. (Hymen.) spicatum, L. ; rhizome woody, short-creeping ; st. 1-2 in. 1., 

 short, firm ; fr. 6-18 in. 1., -1 in. br., the upper part for 4-6 in. contracted and 

 fertile, the edge entire, the lower part narrowed very gradually ; texture sub- 

 coriaceous ; surfaces naked ; areolce uniform, hexagcnal, with copious free 

 veinlets ; caps, mixed with peltate scales. Hk. Sp. 5. 3. 280. Fil. Ex. t. 78. 

 ft, H. brachystachys, J. Sm. ; fr. broader, the fertile spike thick, 1-li in. 1. 



a. F. t. 3. 



Hab. Himalayas (to 6,000 ft.) to Madagascar, Mascaren Isles, Ceylon, South China, 

 Philippines, Queensland, Society Isles. H. validinerms, Kze., is a strong broad form. 

 The Mascaren plant has distinct primary veins, and is the original Linnaean spicalum. 

 The Polynesian is H. ophioglossoides, Kaulf. See Carruth. Fl. Vit. p. 375. 



130. A. (Hymen.) platyrhynchos, Hk. ; st. tufted, scarcely any; fr. 12-16 

 in. 1., 1 in. br., the sori in a patch at the apex 1-2 in. 1., f in. br., which does 

 not reach to the edge, the edge entire, the lower part narrowed gradually ; texture 

 very coriaceous ; surfaces naked ; areolce copious, fine, hidden, uniform, with 

 copious free veinlets. //. Sp. 5. p. 280. Ic. t. 999. Macroplethus, Presl. 



Hab. Philippines, Cuming, 196. 



** Photinopteris, J. Sm. Frond pinnate or deeply pinnatifid, the fruit on 

 the Lomarioid upper pinnce. Habit and venation of Drynaria. Sp. 131-132. 



131. A. (Photi.) rigidum, Wall. ; rhizome woody, wide-scandent; st. short, 

 firm, erect ; fr. several feet long, often 1 ft. br., the lower pinnce several on each 

 side, barren, stalked, jointed at the base, ovate-acuminate, entire, 3-6 in. 1., l|-3 

 in. br. ; above this several pair of distant fertile pinnce 4-6 in. 1., ^ in. br. ; 

 texture very coriaceous ; surfaces and rachis naked ; main raised veins connected 

 by raised transverse veinlets with copious small areolse between them with 

 free veinlets. Hk. Sp. 5. p. 281. 



Hab. Philippines and Malay Peninsula and Isles. P. simplex, J. Sm., has the fertile 

 pinnae reduced to one. 



