TAB. CXLVI. 
ACROSTICHUM OVATUM. 
FILICES.—Grnarz. Br. PorvPonpIACEX. Kaulf. . Frriczs va. Willd. 
GzN. Cuan. 4CROSTICHUM, Linn. Sori amorphi, seu Capsule per totam paginam infe- 
riorem frondis (interdum diverse) l. ad ejus partem sparse. — volucrum nullum (nisi squa- 
mule vel sete in quibusdam capsulis interstincte). B. 
ACROSTICHUM ovatum ; ubique paleaceo-squamosum, squamis profunde laciniatis, frondibus exacte 
ovatis obtusis sublonge petiolatis, fertilibus conformibus, caudice valde ramoso repente. 
Has. In Monte Cayambe, Andium Peruvianorum, alt. circiter 6,400 ped. truncos fruticum 
investiens. D. Prof. Gul. Jameson. 
Tota Planta, nisi pars inferior frondis fertilis, squamosa, squamis paleaceis ferrugineis insigniter laciniato-pinnati- 
fidis tecta. 
Caudex valde ramosus, crassiusculus, repens, hic illic radiculosus, frondes plurimas emittens. 
Stpes duas uncias longus, nonnunquam multo brevior, gracilis, erectus. 
Frons vix unciam longa, exacte ovata, obtusa, coriacea, plana, viridi-fusca; fertilis sterili conformis, margine 
omnino integerrimo: costa distincta, venis nullis. 
Capsule totam superficiem inferiorem tegentes, globosze, fusce, annulo lato cinctze, brevi pedicellatze. 
Semina ovali-subglobosa, subtuberculata, reticulata, flavo-fusca. 
Fig.1. Squamse frondis. f.2. Capsule. f.3. Semina:—magn. auct. 
There are few spots on the globe, if we may judge from the plants we have received from Pro- 
fessor William Jameson of Quito, that can yield so great a number of new and curious species of 
Ferns as the Peruvian Andes. "The present is one among the many novelties which that gentleman 
has been so good as to communicate to us. It is probably allied to 74crost. reptans of Cavanilles, 
a native of Quito, which has not the caudex radicant and the fronds ovate, but acute and ciliated, 
and the fertile ones are linear. 
