412 60. ACKOSTICIIUM, ** STEXOCIIL^EXA. 



** Stenochlaena, J. Sin. Barren fronds simply pinnate, the pinnae like those of 

 Lomaria in their shape, coriaceous texture, and fine close venation. Sp. 66-70. 

 Fig. 60. f. g. 



66. A. (Steno.) sorUf ilium, L. ; rhizome thick, woody, often 30-40 ft. 1., 

 clasping trees like a cable, sometimes prickly ; fr. 12-18 in. ]., 6-12 in. br., 

 simply pinnate ; barren pinnae 4-8 in. L, f-^ in. br., 3 to 20 on each side, articu- 

 lated at the base, the edge entire or toothed ; texture coriaceous or subcoriaceous ; 

 both sides naked ; rachis often winged ; fertile pinnce 1-2 in. apart, 2-4 in. ]., 

 - br. Hk. Sp. 5. p. 241. 



Hab. West Indies to Peru and South Brazil; Fiji, Samoa, New Caledonia, Philip- 



S ics, Malaccas, Cochin China, Seychelles, Mascaren Isles, Angola, Guinea Coast. 

 is corresponds to the genus Lomariopsis of Fe"e, who makes 17 species. The type 

 has 12 to 20 pairs of pinnae about 2-3 in. L, f in. br., the edge slightly and irregularly 

 crenato-serrate ; S. longifolia, J. Sm. (Lomaria, Kaulf.), fewer pinnae, the edge more 

 distinctly toothed, and the base cuneate ; A. yapurense, Mart. (Gard. F. t. 57), pinnae 

 sometimes 1 in. br., 3 to 6 on a side, almost entire, the texture not so coriaceous, and 

 the veining not so close ; L. fraxinea, Willd., short- stalked, entire, pinnse often 5-6 in. L, 

 1-1J in. br. ; L. Wrightii, Eaton, oblong-obovate pinna3 remarkably narrowed at the 

 base, and cuspidate at the apex ; and L. cuspidata, Fee, long-stalked, ligulate-cuspidate 

 pinnae sometimes 8 in. 1. Here also, as abnormal forms, probably belong A. buxifolium, 

 Kze., pinnse sessile, coriaceous, dark-green, oblong, very obtuse, under 1 in. 1., \ in. br. ; 

 L, variabilis, Fe"e, lower pinnss deeply pinnatifid, with round crenated lobes ; Polyp. 1 

 linerve, Hk., and L. Smithii, Fe"e, frond sessile, deltoid, tripinnatifid, the pinnules small, 

 dichotomously forked, or with 2 ligulate lobes on each side. 



67. A. (Steno.) decrescens, Baker ; rhizome woody, wide-scandent ; st. 2-3 

 in. 1., firm, slightly scaly ; barren fr. 18 in. L, 4 in. br., with about 40 pinnce 

 on each side, those about a third of the way down the longest, and from this 

 narrowed very gradually down to mere auricles at the base ; pinnce close, % in. br., 

 the edge obscurely crenulate ; texture coriaceous ; both sides naked ; rachis slightly 

 winged upwards ; fertile pinnce in. br., cuneate at the base or subpetiolate. A. 

 pplyphyllum, Hk. Sp. 5. p. 243. (not p. 269). 



Hab. Cameroon Mountains, West Tropical Africa, Mann, 1391. 



68. A. (Steno.) scandens, J. Sin. ; rhizome woody, wide-scandent, scaleless; 

 st. 3-4 in. 1., firm, erect, naked ; fr. 1-3 ft. 1., 1 ft. or more br., simply pinnate ; 

 barren pinnce 4-8 in. J., f-l in. br., the point acuminate, the edge thickened 

 and serrulate, the base cuneate, sessile, or slightly stalked, articulated, and with 

 usually a gland on the upper side ; texture coriaceous ; rachis and both sides 

 naked; veins fine and close ; fertile pinnce 6-12 in. 1., l|-2 lin. br., the lower 

 ones 1-1 J in. apart. Hk. Sp. 5. p. 249. Polyp, palustre, Linn., oldest name. 



Hab. Himalayas and South China to Ceylon, Queensland, and Fiji. The veins here 

 spring from a line (see fig. 60. f.) which runs parallel with the midrib, either quite close 

 to it or with a very narrow space between. Davallia achilleifolia, Wall. (Hk. Sp. 1. 

 p. 195. t. 56. D.), seems to be a deltoid tripinnatifid abnormal form. It is Teratophyllam, 

 aculeatum, Mett., Ann. Mus. Lug. Bat. 4. p. 296. 



69. A. (Steno.) laurifolium, Hk. ; st. firm, erect, naked ; fr. 2-3 ft. 1., 12-18 

 in. br., simply pinnate; barren pinnce 6-9 in. L, l|-lf in. br., narrowed gradually 

 from the cordate base to the apex, the edge sharply but finely toothed, the base 

 sessile, not articulated, and without a gland ; texture coriaceous ; rachis and both 

 sides naked ; veins fine and clos ; fertile pinnce 6-10 in. 1., ^-^ in. br., the lower 

 ones 1-2 in. apart. Hk. Sp. 5. p. 251. 



Hab. Philippines, Cuming, 2261 ; Solomon Isles, Milne, 518. Like the last, but 

 larger, and the pinnae not articulated. 



70. A. (Steno.) tcnuifolium, Baker ; rhizome wide-scandent, woody, slightly 





