are finely and often densely puberulous with short hairs, while long hairs in typical 
forms are lacking; both surfaces are more or less finely downy, which gives the 
lamina a greyish appearance. The scales are about as those of typical D. subincisa, 
i. e. shortly toothed, and in size and cutting I find no essential difference between 
the two species. 
P. extensum Pr. is according to a note in B. this species; PRESL’s name is the 
oldest, but is invalidated by P. extensum Forst. Nephr. polylepis may according to 
the description be this species; I have seen no authentical specimen. , 
Peru near Pampayaco, Porprre (B); Tarapoto, Spruce nr. 4718 (Kew, RB —- a form with some longer 
hairs between the shorter ones). 
Bolivia: Polo-Polo bei Coroico, Nordyungas, BUCHTIEN nr. 3588, 3609 (R). 
Ecuador: near San Florencio, STiseL nr. 788 (B); Sopiro (RB). 
Colombia: Coteje am Rio Timbiqui, LEHMANN nr. 8924 (B); Las Juntas, Stipet nr, 19, 24, 24a (B). 
Costa Rica: Cafias Gardas, Pirrier nr. 10993 (RB, W); Palma, C. Brave nr. 215 (R); Finca Gebr. 
Hundrisser C. Brave nr. 404 (R); Chilamate, Prrrirer nr. 7480? (B, W). 
Paraguay: Sierra de Amambay, Rosas ed. HassLer nr. 10421 (RB). 
326. Dryopteris spectabilis (Kaulf.) C. Chr. comb. nov. — Fig 14. 
Syn. Polypodium spectabile Kaulf. Enum. 121. 1824. 
Phegopteris spectabilis Fée, Gen. 243. 1852 (non Cr. vase. Br. 1: 103), Mett. 
Fil, Lechl. I. 19, I]. 26 (non Fil. Hort. Lips. 83 nec Pheg. 30 nr. 62). 
Type from Chile, leg. CHamisso (not seen; on a label to PoreppiG nr. 137 
METTENIUs has written: exacte congruit cum h. Kaulf. 886, 887, and I think, therefore, 
that the specimen leg. PorppriG is typical). 
Differs from the other species allied to D. subincisa by 
its castaneous, lanceolate, firm and fragile scales that are quite 
entire or finely toothed towards the apex only, by its firm, 
chartaceous texture and greyish-green colour and by the basal 
anterior tertiary segments being broader and a little longer 
than the following ones, while the posterior ones are some- 
' what reduced. The midvein of a posterior basal segment that 
is broadly adnate to the costa and sometimes very narrrowly 
adnate to the costule, springs out from the costa about 2mm 
from the base of the costule. In pubescence the species scarcely 
differs from D. vasta. Stipe, rachis, coste, ¢ostules and veins 
beneath are shortly greyish puberulous, the leaf-tissue of the 
under-side more or less minutely downy, midribs and veins 
_ above antrorsely and shortly strigose; the upperside otherwise 
nearly glabrous, the margins ciliate. Sori rather small, 4—10 to 
each tertiary segment, medial. — Longest pinnz seen about (© Gh, seco dary pinnu 
30 cm long; the pinnules are shortly acuminate or acute pat. size; segment < 2 and 
and the segments are generally all entire or faintly crenate. scale from costa. 
Fig. 14. D. spectabilis (KIf.) 
ai ’ 
