278 ACROSTICHUM, § LEPTOCHILUS. 



Hab. Java, Blume. Penang, Wallich. Ceylon, common. Mm. Genl. Walker, 

 Gardner, n. 1157, 1317, 1318 {var. ;3), Assam, Simons. Khasya, Hooker f I. 

 and Thomson, alt. 2000-3000 feet.— Allied to J. lanceolatum ; but tbat is smaller 

 and more rigid, sterile fronds scarcely costulate. It varies much in the relative 

 length and l)readth of the fronds and in paler or darker colour. In var. ,8 the sterile 

 fronds are deeply laciniato-pinnatifid, and the fertile ones are pinnated with several 

 very long, almost filiform pinnae. " It grows in peculiar localities, rarely inter- 

 mixed with the normal state" {Thwaites). 



160. A. (Leptocliilus) Linnceanum, Hook.; caudex creep- 

 ing scaly fibrous beneath, stipites scattered approximate 2-6 

 inches long sparsely paleaceous below with subulate black 

 scales, fronds sul)dimorphous ; sterile ones 4-8 inches long 

 ^ an inch wide submembranaceous elongato-lanceolate sul)- 

 opaque often long acuminate rooting and proliferous at the 

 apex entire at the margin costate, costules indistinct, veins 

 anastomosing, areoles subhexagonal rarely with free included 

 veinlets. — Hook. 2d Cent, of Ferns., t. 26. Leptochilus, Ft'e, 

 Acrost.p. 87- t. 47. y. 2 [excl. probably allihe syns.). Den- 

 droglossa, Fee, Gen. F'd. ;?. 8 1 . 



Hab. Malay Islands : Java, " Zollinger, n. 1441 ;" Borneo, Motley, n. 427. — 

 Well figured l)y Fee ; but he surely errs in quoting Acrostichum lanceolatum, 

 Linn. Amcen. Acad. i. p. 268, where it is said, " fructificationes sunt pnncta con- 

 fertissima, versus apicem frondis," and reference is made to Hort. Malab. xii. t. 

 27. Swartz showed long ago that the Linnfean plant is the Polypod. acrostichoides 

 of Forst., now considered to be a Niji/iol/olus. 



161. A. (Leptochilus) taccafoRuni, Hook.; caudex stout 

 short creeping paleaceous with long dark-brown glossy linear- 

 subulate scales, stipites short and almost none or a span to 

 afoot long of the fertile fronds, in both near the l)ase crinite 

 and almost squarrose with long narrower spreading flexuose 

 scales ; sterile fronds membranaceous dirty-brown when dry 

 6-11 inches long 1^-2^ inches wide and simple broad- 

 lanceolate shortly acuminate costate subsinuate moderately 

 attenuated below scarcely decurrent but terminating rather 

 suddenly and with a decidedly waved margin, or larger and 

 deeply three-lobed, or larger still 1| foot long and nearly as 

 much wide and deeply pinnatifid with 7-9 oblong distant 

 more or less acuminated confluent segments 4-6-8 inches 

 long entire or sinuate or even pinnated in the lower half, the 

 pinnae large deeply bipartite and petioled, venation conspi- 

 cuous, costules evident nearly Iwrizontal very flexuose united 

 by transverse arched veins forming primary large areoles, 

 secondary areoles subquadrangular copious including free 

 divaricating veinlets ; fertile frond 6- 12 inches or more long 

 \\ line wide narrow-linear and simple or deeply pinnatifid or 



