TAB. CLXXIX. 
TRICHOMANES MUSCOIDES. 
FILICES.—GvnaArz. Br.  PorvropnraAczz. Kaulf. | Fririces vere. Willd. 
GzN. Cuag. THICHOMANES, Sm. Sori marginales. Capsule sessiles receptaculo com- 
muni cylindraceo inserte, intra Znvolucrum monophyllum suburceolatum, ore hiante, textura 
frondis. Ar. 
TaicHoMANESs mauscoides ; frondibus erectis simplicibus glàberrimis oblongis vel oblongo-lanceolatis 
obtusis basi cuneatis subsessilibus sinuato-subpinnatifidis minutissime reticulatis remote veno- 
sis, involucris immersis, ore perbrevi vix labiato libero. 
Trichomanes muscoides. Sw. FT. Ind. Occ. v. 3. p. 1726. Syn. Fil. p. VAY. JF'illd. Sp. PI. v. 5. 
p.500. Spreng. Syst. leget. v. A. p. 128. 
Trichomanes hymenodes. * ZZedw. F3. Ic." 
Trichomanes simplex repens, foliis incisis, capsulis diphyllis. | Brown, Jam. p. 86. 
Has. In insulis occidentalibus, precipue Jamaicz et Hispaniole. Swartz ; Dom! JF'iles, 8 
Hisson. í | 
Caudex longe intra muscos repens, gracilis, filiformis, ferrugineo-tomentosus. 
Frondes plurimze, sparse, erectee, ubique glabra, unciam ad tres uncias longe, (nut omolübtanaded, forma mire 
variabiles, subrotundse, obovatze, oblongs, vel etiam oblongo-lanceolatze, semper obtusse, margine superne, 
precipue, sinuato-subpinnatifidee, virides, sub lente minutissime pulcherrime reticulate, tenuiter costatz, 
nervisque obliquis remotis, dichotomis instructe, nervoque marginali vel paulo intra marginem currente, 
inferne cuneatim attenuatz» in stipitem perbrevem, fere nullum. 
Sori prsecipue versus extremitatem frondis, ad apices loborum. 
Involucra venas terminantia, substantia frondis immersa, sub-cylindracea, inferne in nervo attenuata: ore solum- 
modo libero hiante, labiis perbrevibus. 
Receptaculum paululum exsertum, inferne intra involucrum, capsuliferum. 
Capsule orbiculatee, compressze, peltatee, annulo completo cinctase. 
Semina minutissima subrotunda, flavescentia, pellucida. 
Fig. l. Apex frondis. f. 2. Portio ejusdem, magis aucta. f. 3. Receptaculum cum capsulis. f. 4. Semina :— 
magn. auct. 
Although this is a plant that has been long noticed by botanists, it 1s one of which we know of no 
satisfactory figure or description; and which has, we fear, often been confounded with 7: reptans 
(Tas. XXXIL), or with some other of the smaller simple-fronded species. Its nearest affinity is 
with the species just mentioned ; yet, if its longer and narrower outline, its more sparingly nerved 
fronds, with their perfect freedom from hairs, and, above all, the immersed involucre, be attentively 
considered, there will be no difficulty in distinguishing it. Swartz, indeed, in his Synopsis Filicum 
describes the involucres as exserted: this is only the case apparently, when they are situated in a 
very narrow segment or lobe of the frond ; so that the substance of the frond around it 1s overlooked 
or taken for a winged margin, which it seems to constitute. 
