FERNS : SYNOPTICAL LIST.— XXVI. 



Synoptical List, with description of the Ferns and Fern-Allies of 

 Jamaica, by G. S. Jenman, Superintendent Botanical Gardens, 

 Demerara, {continued from Bulletin, Part 2). 



30. Asplenium Scandicinum, Kaulf.- Rootstock upright, clothed with 

 firm hairlike brown scales ; stipites tuffced, naked, light-green 6-10 in. 

 1 ; rachis similar ; fronds pendent, f -1 \ ft. 1. J-§ as wide, ovate-lan- 

 ceolate, acuminate, tri-quadripinnate, thin, clear light green, pellucid 

 naked ; pinnae subdistant, lax similar in shape to the frond, 3-5 in. 1. 

 nearly as w. acuminate, rather long petiolate ; pinnulae and final seg- 

 ments petiolate, the latter cuneate-rhomboidal, 4-6 li. 1. and w. incised 

 the end blunt, f -1 li. w.; veins radiant, forked, no main rib ; sori 1^ 

 li. L, also radiant, involucres pale, thin. — A. adiantoides, Raddi. 



Gathered only by Dr. Macfadyen, the locality not recorded whose 

 specimens are in the Kew herbarium, from which the above descrip- 

 tion was drawn up. Resembling cuneatum in general outline, but 

 the final segments much larger, thinner, flaccid, and paler. 



31. A. myriophyllum, Spreng.-Stipites, erect, J-l ft. 1. naked, green* 

 margined gray or darker when dry, tufted on a fibrous finely-scaly 

 rootstock ; rachis conform ; fronds oblong or ovate-lanceolate, bitri- 

 pinnate, f-1^ ft. 1; J- J ft. w. acuminate, abruptly reduced at the base 

 to small dwindling multifidly cut pinnules, membranous, bright green, 

 glossy, naked ; pinnae numerous horizontal, approximate or subdistant, 

 oblong-lanceolate, sessile, 1J-4 in. 1. J-l in. w. acuminate or rarely 

 obtuse ; pinnulae close, in. 1. deeper on the outer side, oblong, 

 broadly obtuse, pinnate ; final segments linear or elliptical, 1-2 li. 1. 

 |-f li. w., the inferior united and emarginate ; veins simple in the 

 segments or lobes, in which the sori which are li. 1. and lateral 

 on the veins are also single ; involucres pale, thin. — Eat. Fer. N. Am. 

 pi. 51. Camopteris myriophyllum, Swartz. 



Common at 4000-5000 ft. alt on wet rocks and banks of streams, in 

 forests and woody places ; more compound than the form figured by 

 Eaton as found in the Southern States. Distinguished from cicuta- 

 rium which it most resembles by the more deeply cut, fully pinnate 

 pinnulae, — hence free final segments, the basal of which overlap the 

 rachis, and by the much reduced lower pinnae, the two following species 

 however having also the latter feature. 



32. A. monteverdense, Hook.— Stipites tufted on a small upright 

 and minutely scaly rootstock, very slender, grayish, 1-5 in. 1. chan- 

 nelled narrowly membran-margined, fronds tripinnate, lanceolate ob- 

 long, membranons, naked, slaty-green, 3-8 in. 1. 1-2 in. w. acuminate, 

 the base reduced ; pinnae spreading, contiguous or apart, the reduced 

 lower ones rather deflexed, sessile, oblong or lanceolate-oblong, mostly 

 obtuse, J-l in. 1. \-\ in. w. ; larger pinnulae pinnate subflabellate and 

 cuneate ; final segments simple but confluent at the base, obovate-cu- 

 neate, emarginate, 1 li. 1. \-\ li. w., obtuse, a solitary vein and sorus 

 to each, the latter \ li. 1., elliptical at maturity and lateral on the vein- 

 let ; involucres pale, half elliptical. — Hook. 2nd Cent. Ferns, t. 41.- 

 Sl. t. 52. f. 3. 



Var. Shermaniana, Jenm. — Stipes and fronds shorter, the latter 

 hardly reduced at the base ; pinnules pinnate, flabellate ; final segment 



