266 ACuosTicnuM, § chrysodium. 



places. A sterile frond with alternate, long, narrow-lanceolate, long-peticlate 

 pinnce, with their pale-coloured costae, has very much the appearance of Salix- 

 amygdalina or some allied species of Osier. Quite different from A. Heudelolii, 

 besides other characters, in the entirely pinnated frond, the terminal pinna long- 

 petioled. 



§ 11. Chrysodium. — Fronds simple or pinnated, more or less dimorphous. 

 Veins uniformly reticulated so as to form elongated hexagonal areoles, destitute 

 of free veinlets. — Gen. Chrysodium, Fee, in part. Acrostichuni, Linn. Neu- 

 rocallis, Fee. Cheilolepton, Fee. Chorizopteris, Fee. Hymenodiura, Fee. 

 Dictyoglossum, /. Sm. 



137. A. (Chrysodium) aureum, Linn. ; caudex short tliick 

 erect slightly paleaceous at the summit emitting a mass of 

 fleshy fasciculated vermicular fibres, stipites tufted a span to 

 2 feet and more long often as stout as a man's finger, fronds 

 for the most part very coriaceous and hard when dry when 

 young submembranaceous sometimes only a span long and 

 simple (yet fertile) oblong or ternate or 2-6 feet and more 

 long oblong and pinnate, pinnae usually petiolate 3-4 inches 

 to H foot long ^-3 inches wide, upper ones somewhat con- 

 tracted and fertile varying extremely in shape generally more 

 or less oblong or linguiform obliquely cuneated at the base, 

 the apex obtuse or even retuse or emargiuate sometimes 

 apiculate or acuminate, the margin slightly thickened and 

 subrevolute, veins closely and uniformly anastomosing with 

 small oblong areoles which have an oi)liquely patent direction 

 from the costa. — Linn. Sp. PL p. 1525. Sw. Syn. Fil. p. 13, 

 Willd. Sp. PL V. jy. 116. Schk. FiL t. 1. 3Ioore. Chryso- 

 dium vulgare, Fee, Acrost.p. 27- Acrost. fraxinifolium, Br. 

 Chrysod., Fee, L c. p. 101. /. 62. A. speciosum and A. in- 

 eequale, JVilkL A. marginatum, Schk. A. dane8ef(dium, 

 Langsd. and Fisch. Ic. FiL p. 5. t. 1. A. obliquum, BL FiL 

 Jav. p. 30. t. 9. Chrysod. hirsutum. Fee. Acrost. formo- 

 sum and A. Wightianum, Pr. Chrysod. Cayennense, Fee, 

 Acrost. p. 100. t. 69. C. D'Urvillei, Fee, L c. p. 100. /. 60. 

 C. sculpturatum, Fee, L c. p. \00.t. 61. Acrost. juglandifo- 

 lium, Klfs. A. rigens, Pr. 



Hab. Tropical and subtropical countries throughout the world. America, from 

 the southern extremity of the United States to South Brazil, and from the At- 

 lantic to the Pacific : Galapagos, C. Wood. India : Malay Islands and Peninsula, 

 Borneo, Thos. Lobb. China and its islands (Formosa, etc.). Bengal, Wallich. 

 Ceylon, Mauritius, Bourbon, and Madagascar. Zambesi, east tropical Africa, Kirk. 

 South Natal, Macalisberg (Sanderson). West tropical Africa, mainland and islands, 

 Vogel, G. Mann, Barter. Australia: tropical, Z^roJ/'w (differing in no essential 

 particular liom that of other countries) ; Brisbane, Fraser, and salt-water creeks 

 towards M'Adam's Range, Mueller; Port Essmgton, Armstrong ; Percy Island, 

 Macyillivray. Pacific Islands, Fiji and Society and Samoan Islands, Brackenridge, 



