30 AKKIV FÜR BOTANIK. BAND 1. 



The species in question belongs to the group I am now 

 dealing with, because the involucre is quite exserted, distinctly 

 twolipped, and placed at the apex of some terminal lobe (»sori 

 primitus terminales», Van den Bosch; »epitacti Sori», Prantl). 

 The cutting is somewhat like that of Tr. Kraussii (p. 26), 

 but is deeper pinnatilid down to a narrowly winged rachis: 

 in general the same frond is partially bipinnatilid. All seg- 

 ments are patent; the ultimate ones are linear and very nar- 

 row, as in Tr. sociale (p. 17), and never entire, but deeply 

 and elegantly crenate or moniliform, as said above. The se- 

 condary and tertiary veins are all decidedly flexuose, running 

 almost at right angles from their main costa. 



Hab. In Andibus Ecuadorensibus, 1857 — 59, R. Spruce^ 

 n. 5354.:> 



6. Trichomanes reptans Sw. — Fig. 17—19. 



Swartz, Xova genera et species plautarum seu Prodromus 

 descriptionum vegetabilium, 1788, p. 136; Flora Indiae occidentalis, 

 III, 180«;, p. 1727: Synopsis Filicura, 1806, p. 141. 



Syn. Sloane, A Voyage, t. 27, tig. 1 (pars speciminis)? 

 » Trich. reptans Hedwig, Fil. gen. et spec, 1799, t. 3, f. 4. 

 » » Flora Brasil., Yasc. 23, 1859, p. 279, t. 18, 



f. 3. 

 » Didymoglossum reptans Presl, Hymenophyllaceae, 1843, 

 p. 23? 



Non Tr. reptans Hook, et Grev., Ic. Fil., t. 32, neque 

 Hook, et Baker, Synopsis Fil., ed. 2, 1883, p. 74. 



This is one of the first species described of this whole 

 group (1788). From the original specimens in Herb. Swartz 

 it is evident, that Tr. reptans belongs to a type different from 

 the old Tr. hymenoides, and to the same type as Tr. Kraussii, 

 quercifoliuni, melanopus, and others. It has an elongated 

 frond of distinctly pinnatifid cutting, and pinnate veins from 

 a long central costa, even in a sterile frond, and should by 

 no means be confounded with Tr. sphenoides Kze, nor placed 

 with Tr. ptoictatum Poir., as is done in the great English 

 works quoted above. In general outline, this species comes 



