TAB. IX. 



TRICHOMANES FLORIBUNDUM 



FILICES. — Gyratje. Br. Polypodiacete. Kaulf. Filices vera. Willd. 



• 



Gen. Char. TRICHOMANES, Sm. Sori marginales. Capsula sessiles, receptaculo com- 



muni cylindraceo insertse, intra Involucrum monophyllum, suburceolatum, ore hiante, textura 

 frondis. Br. 



Trichomanes floribundum ; frondibus pinnatis, pinnis lanceolatis spinuloso-serratis, superioribus 



decurrentibus. 



Trichomanes floribundum. Humb. et Bonpl. MSS. Willd. Sp. Pl. v. 5. p. 505. Humb. et 



Kunth Nov. Gen. Pl. Am. JEq. v. l.p.25. Kunth Syn. Pl. v. \.p. 89. 

 Trichomanes pinnatum. Swartz. Syn. Fil.p. 142. 



- 



Trichomanes rhizophylla. Szvartz. Syn. Fil.p. 142. " Cavan. Prcd. 1801. n. 696." 



Hab. Ad ripam fluminis Rio Negro, prope San Carlos, in sylva opaca (Missiones del 



9 



Orinoco). Humb. et Bonpl. In sylvis densis prope lacum Asphaltum, Insulee Trinitatis. 

 De Schach. Jamaica. Masson. Guiana. Herb. De Lessert. 



* 



" Radix fusca fibrosa, fibris crassis." Willd. 



Stipes longitudine variat 2 — 3 uncias ad 6 — 8-pollicares, filiformis, gracilis. 



( 



Frondes, circumscriptione ovatae, vel ovato-deltoideae, pinnatae, pinnis nunc 3 — 4-, nunc 16-jugis, cum impari, 



alternis, patentibus, lanceolatis, 3 — 6-pollicaribus, spinuloso-serratis, obtusiusculis, basi superiore truncat; 



inferiore subdecurrente, costatis, venis furcatis vasis transversalibus rete tenerrimum includentibus connexis 



(f. 2.) : — summis confluentibus ; terminali elongata ; — in fronde sterili, loco pinnse terminalis, rachis apice 

 nuda, elongata, radicans. 



Sori marginales, numerosissimi, serraturas terminantes. 

 Indusia cyathiformia, exserta, compressa, ore sub-bilabiato. 

 Receptaadum indusio duplo triplove longius. 



Capsulce ad basin receptaculi, rotundato-compressae sessiles, annulo completo transversali cinctae. 

 Semina minuta subsphaerica. 



Fig. 1. Apex pinnae fertilis. f. 2. Portio pinnae. f. 3. Indusium, cum ejus receptaculo. f. 4. Receptaculi basis, 



cum capsulis tribus. f. 5. Capsula. f. 6. Semina : — magn. auct. 



* 



A beautiful and we believe very rare species of Trichomanes, remarkable for its numerous mar- 

 ginal fructifications, and, as Kaulfuss well observes, for the nature of its venation. The lateral 

 parallel veins resemble those of many monocotyledonous plants ; and from the extreme delicacy of 

 the parenchyme between these veins, the pinnae are frequently torn in the direction of them, as we 

 see to be the case in the diiferent species of Musa. 



The late Baron de Schach favoured us with the specimens here figured, from the shores of the 

 Asphaltum lake in Trinidad. 



