205 257 
Rhizomate oblique-erecto, squamis stellato-pilosis sparse onusto. Stipitibus 
subfasciculatis, foliorum sterilium 10—20 cm, fertilium 30—40 cm longis, angularibus, 
sparse et decidue squamosis, glabris. Lamina ovata, 15—18 cm longa, 12—15 em 
lata, griseo-viridi, membranacea, rachi minute stellato-puberula costis pinnarum 
subtus sparse et microscopice hirtis exceptis glaberrima, sed paginis densissime ver- 
rucosis, ad insertionem pinne lateralis supremae gemma magna squamosa bulbilli- 
fera, pinnata cum impari. Pinnis lateralibus 2—4-jugis, alternis, infimis breviter 
petiolulatis, supremis sessilibus, lanceolato-ellipticis, 12 em longis, 2—2'/» em latis, 
ad basin breviter contractis, versus apicem acuminatis, grosse serrulatis vel lobu- 
latis. Lobis approximatis, subfalcatis, obtusis vel antice aculis, 5—6 mm longis, 
4—5 mm latis. Venis simplicibus, valde ascendentibus, 8— 9-jugis, inferioribus 3—4 
ad sinum conniventibus, omnibus liberis et saepe interruptis, infimis interdum 
anastomosantibus meniscioideis. Soris parum inframedialibus, indusiis minimis, ci- 
liatis, raro repertis. Sporangiis glabris. 
This new species agrees with D. obliterata in shape and cutting of the pinne 
and partly also in venation, but it differs considerably from that species, its nearest 
relative, by the few pinnz, gemmiferous rachis, thinner texture, both surfaces 
being densely warted by small raised points, and by its variable venation. Most 
often the veins are all free, but one can in the same pinna find all intermediate 
states of venation, from all veins being free to 2—3 pairs anastomosing and then 
the lowermost pair is often meniscioid. The anterior basal vein springs constantly 
out from the costa, which is not the case in D. obliterata. In all specimens seen 
the fertile leaves have a longer stipe than the sterile ones. 

259. Dryopteris obliterata (Sw.) C. Chr. Ind. 280. 1905. 
Syn. Polypodium obliteratum Sw. Prodr. 132. 1788; Fl. Ind. oec. 1660; Bak. in 
Hk. Icon. plant. tab. 1669. Jenm. Bull. Dept. Jam. n. s. 4: 132. 1897. 
Phegopteris obliterata Mett. Pheg. nr. 46. 1858. 
Polypodium faucium Liebm. Mex. Bregn. 57 (Vid. Selsk. Skr. V. 1: 209). 1849. 
Type from Jamaica, leg. Swanrz (S!). 
Rhizome shortly creeping with a few densely stellato-pilose scales. Stipes sub- 
distant, 4—5 dcm long, quadrangular, greyish-stramineous, glabrous. Lamina with 
6—10 pairs of shortly stalked, alternate, lateral pinne and a similar but often larger 
terminal pinna, firmly membranous or papyraceous, sometimes nearly coriaceous, 
generally greyish green, microscopically puberulous on rachis and cost: beneath, 
otherwise glabrous; hairs of rachis stellate. Pinnz 12—20 cm long by 2—3 cm broad, 
acuminate, shortly attenuate towards the base, serrate or shallowly lobed. Teeth 
oblique, acute, not much longer than broad. Veins 6—8-jugate, the lower two pairs 
generally thinly anastomosing and sending a branch to the narrow membrane, to 
which the next 2—3 pairs are connivent; in Central-American specimens the jlowest 
or sometimes the two lower pair of veins are meniscioid. Sori in two convergent 
rows, the lower ones being about medial, the upper ones gradually approaching the 
