424: GO. ACROSTICHUM, ***** HYMENOLEPIS, ****** PHOTINOPTERIS, 



glossy ; //'. 2-G it. 1., 1-2 ft. lir., the upTper pintice 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 surf aces n&k&A. ; 

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



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

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

 Angola, Guinea Coast.— Includes five species of Fee. 



t). Frond bipinnate. Sp. 128. 



128. A. (Chrys.) polyphyllum, Hk. ; r/«^o?«e woody, wide-scandent ; s^. 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. 1., 2 in. br. ; pinnl. 

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

 textm^ herbaceous ; rachis and surfaces naked ; areolcb hexagonal, without free 

 veinlets ; fertile pinnl. stalked, §-^ in. 1., -^ in. br. — Uk. Sp. 5. p. 269. Loraa- 

 gramme, Brack. 



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

 agrees with A. Wilkemanum. A. pteroides, R. Br., from Tropical Australia, has an ebe- 

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

 sparingly pinnate, but the barren frond is not known. 



***** Hymenolepis, Kaulf. Fronds simp>le, 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 xmiform, hexagonal, with copious free 

 yeinlets ; caj^s. mixed with peltate scales. — Hk. Sp. 5. o. 280. Fil. Ex. t, 78. — 

 /S, H. brachystachys, J. Sm. ; fr. broader, the fertile spike thick, 1-1^ in. 1. — 



a. F. t. 3. 



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

 Philippines, Queensland, Society Isles. — //. validinervis, Kze., is a strong broad form. 

 The Mascaren plant has distinct priniai-y veins, and is the original Linnsean spicatum. 

 The Polynesian is H. opliioglossoides, Kanlf. See Carruth. FI. 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. — Hk. Sp. 5. p. 280. Ic. t. 999. Macroplethus, Presl. 



Hab. Philippines, Cuming, 196, 



****** Photinopteris, tT". aS'?«. Frond jnnnate or deeply pimiatifid, the fruit on 

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



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

 firm, erect ; //•. 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., 1^-3 

 in. br. ; above this several pair of distant fertile pinnae 4-6 in. I., \ in. br. ; 

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

 by raised transverse veinlets with copious small areolee between them with 

 free veinlets. — Hk. Sp. 5. p. 281. 



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

 pinuae reduced to one. 



