111 
a 
Nephrodium amplissimum Hook. sp. 4: 145. 1860; Bak. Fl. Bras. 17: 485; Syn. 
ed. II. 502. ee 
Aspidium fallax Fisch. Ind. sem. ht. Petr. eee Linnea 28: 357. 
Acrophorus fallax Regel, Gartenflora 6: 343. 
Aspidium ramosum Fée, Cr. vase. Brésil 1: 141 ee 47 fig. 3. 1869. 
Aspidium latissimum Fée, |. c. 142 tab. 48 fig. 2. 
Aspidium consobrinum Fée, |. c. 140 (non 11. mém. 85). 
Type from South Brazil, leg. Beyricn and SELLow (cotype in B!). 
Rhizome shortly creeping, 1—2 cm thick, densely coated with clathrate, dark- 
brown or reddish-brown, glossy, narrow, lanceolate-acuminate scales that are sharply 
toothed, often with claw-shaped teeth. Stipites rather close, strong, fuscous or 
castaneous, strong, up to 50cm long, towards the base densely, upwards more 
sparsely paleaceous with similar scales. Lamina deltoid-ovate, probably up to one 
meter high and nearly as wide at base, coriaceous, brownish when dried, the 
rachises and midribs glanduloso-pubescent above, sometimes with some yellowish 
cylindrical glands beneath, otherwise without hairs, but rachises I—IV beneath with 
several, often many near the axils, rather deciduous, lanceolate, toothed, red-brown 
scales, 4-pinnate—5-pinnatifid. Pinne and pinnules ovate-oblong, somewhat unequal- 
sided, the anterior side wider than the posterior one, most so at base; lower side 
of basal pinne produced; rachises II—III not winged. Quaternary pinnules or seg- 
ments of middle pinnz oblong, obtuse, rarely 5 mm broad, more or less deeply 
lobed with 3—4 faleate, obtuse or subfalcate lobes on each side; each ultimate 
lobe (of V. order) bears a sorus. Indusia dark-brown, subpersistent, glabrous, sub- 
reniform or almost subpeltate. Sporangia glabrous; sii: meee and densely 
papillose. 
A pretty, large species, connecting D. e/fusa and its allies, Specially D. macro- 
stegia, with D, denticulata, in habit and cutting approaching the former, in indusia 
and spores the latter species, different from both by its toothed scales and scaly 
rachises. I have described above what I consider the typical form. It is fairly con- 
stant, mainly varying in degree of cutting. A. latissimum and A. consobrinum Fée 
are quite the same, while A. ramosum somewhat approaches the var. phaeochlamys. 
The leaves are a little dimorphous, the sterile ones having broader segments than 
the fertile ones, a feature also observed in D. ochropteroides and D. macrostegia. 
D. amplissima is evidently common in South Brazil; I enumerate some of 
the numerous specimens, which I refer to the typical form. 
esate: Rio Janeiro: SELtow nr. 5828 (B); Graziou nr. 979 (H = A. consobrinum Fée, also , 
, 2389 and 2394 (H, RB, Rg = A. latissimum Feée), 2391 (H = A. ramosum ei. 5276 
ak Re 7268 (B, H); BurcHett nr. 2460 or JELINEK nr. 167(B, RB); Menponca nr. 852, 1385 (B): 
scenic: Soap H. ScHENcK nr. 2927 (RB). ao Paulo: Oajurd, Reenece nr. II. 1454 (U, WwW); 
. Mosén nr. 3544 (Rg, S); Campinas, Je nr. 617 (Rg); Jaragua, C. Brape nr. 5252 (R); 
1) near oe 2) iebieeee Apiahy and —- 3) near Parnahyba ad fl. Tieté, WETTSTEIN 
