THE WORKS OF MARCGRAV AND PISO. 215 
which Zrifoli species copiosa im sinu omnium Sanctorum, is difficult to 
determine; the second, Trifol. americanum spicatum (Amores incolis) is 
a Desmodium. At the end of the chapter the quotes Ononis non spinosa 
et floribus luteis, which is Stylosanthes gujanensis ; which Piso in like 
manner mentions in the midst of his Ferns (l. c. p. 234), as if both 
authors had kept in view the qualities of plants in their mode of ar- 
ranging them. To Marcgrav's first Fern, Filiæ brasiliana, is attributed 
“ caulis quadratus ex rufo nigricans splendens lanugine rufa," which, 
with the rest of the description, points at some Adiantum with a pe- 
date-pinnate frond. The same Fern is cited by Piso (l. c. p. 233) 
almost in the same words; but his figure does not, assuredly, belong 
here, but to some Pteris; while that in the next following page, of 
Conambaimiri (fig. sinistra), was intended no doubt for the Filiz bra- 
siliana: an instance of that faulty placing of figures, which M. Lich- 
tenstein censures in the zoological parts of the works. 
The following are briefly the results of the commentator's researches. 
F. brasiliana he considers to be Adiantum curvatum, Sw., found in all 
tropical Brazil, especially in forests not far from the sea. The Pferis 
figure alluded to points somewhat to P. leptophylla, arachnoidea, and 
as far as regards the pinnule sinuate, to P. pallida, Raddi. Marc- 
grav’s second sort may be Lygodium volubile or hastatum; the third 
may be considered as Blechnum brasiliense, Desv., or perhaps B. an- 
gustifolium, Willd.; the fourth is referable to several Polypodiums 
with densely scaly, creeping stems and growing on trees. — Piso's small 
figure, to the right of the Adiantum, is certainly meant for Gymno- 
gramme Calomelanos, a common species in tropical Brazil. 
The commentator now gives a general view of the Ferns of Brazil, 
which he reckons at 715 species, distributed among the following 
tribes and genera :— 
PoryroptACEE 525 species, namely, Polybotrya 5; Olfersia 2; Aero- 
stichum 41 ; Gymnogramme 15; Antrophyum 4; Ceterach 1; Grammi- 
lis 4; Xiphopteris 2; Meniscium 6; Tanitis 2; Cochlidium 1; Noto- 
chlena 3; Polypodium 99; Pleopeltis 6; Cheilanthes 13; Adiantum 
57; Jamesonia 1; Cassebeera 3; Allosorus 1; Pteris 44; Blechnum 
17; Lomaria 10; Vittaria 6; Asplenium 52; Allantodia 1; Scolopen- 
drum 4; Diplazium 20; Didymochlena 1; Nepholepis 1; Aspidium 
61; Cystopteris 1; Lindsæa 13 ; Davallia 5 ; Saccoloma 1; Balantium 
l; Dicksonia 13; Pasia 1; Cibotium 1. 
