NEOTTEJE—PHYSURIDZJE. 505 
often decayed, which gives the plant the appearance of being leafless. 
Scape 8 or 9 inches long, thinner than a crow-quill, cinnamon coloured ; 
the spike, ovaries and base of the sepals covered with flattened spiral white 
hairs. Labellum often dorsal, smooth, white. 
$ 4. Labellum apice tridentatum. 
15. Pnuvsunvs querceticola. 
P. caulescens, glaberrimus, foliis ovatis acutis membranaceis scapo 
univaginato brevioribus, spicá pauciflorà, bracteis membranaceis floribus 
brevioribus, labello sub apice tripartito constricto, calcare oblongo sepalis 
pauld breviore. 
Hab in Americd septentrionali ; in quercetis ad Novam Aureliam abunde, 
Ingalls. (hab. s. sp. comm. cel. Torrey.) 
Of this curious little plant I possess but one poor specimen, about 
4 inches high. It is a weak membranous thing, with 4 leaves and 4 or 5 
flowers, which, in the dried state, are very thin and delicate. 
CCLXXXIX. BASKERVILLA. 
Sepala patentia, basi obliqua, omninó libera. Petala angustiora, patentia, 
basi columnae dorso adnata. Labellum liberum, (cum columná articu- 
latum ?) ovatum, nudum, basi in saccum pendulum productum. Columna 
clavata, basi teres, appendiculata, versus apicem carnosa, solida, pyrami- 
dalis, apice ipso truncata; foveà pro stigmate verticali, bilabiatà, in 
facie columnz apicis anticà ; rostello e contrario subulato, e facie posticà 
que clinandrium est producta. Appendix bivalvis ad columnz basin 
sita, eique adherens, labello abdita; valvulis verticalibus, superne lamellae 
parvae horizontalis ope connexis.———— Herba Peruviana, terrestris, 
radicibus fasciculatis, facie Orchidis. 
Genus singulare, dicatum Thome Baskerville, juveni ingenioso, discipulo dilecto, libelli* de 
plantarum affinitatibus auctori, eheu ! morte prematurá abrepto A. D. 1840. 
This very singular plant is nearly allied to Physurus on the one hand, 
and to Ponthieva on the other, agreeing with the first in its calcarate lip, 
and with the latter in the spreading petals being united to the back of the. 
column. It however differs from both, and indeed from every one of 
the Neotteous genera known to me by its stigma, which is a small two- 
lipped perforation in the upper anterior edge of the truncated pyramidal 
column. 
1. BaskERVILLA assurgens. 
Hab. in Peruvia, Mathews, 1888. (exam. s. sp. in hb. Hooker.) 
Planta glaberrima, palmaris. Folia omnia radicalia, erecta, obovato- 
lanceolata, acuminata, spicà vix breviora, basi in petiolum angustata. 
Scapus squamis 3, apice patulis, acutis vaginatus. Spica cylindracea, 
* Affinities of plants, with some observations upon progressive developement. By 
Thomas Baskerville. London, Taylor & Walton, 1839, 12mo. 
September, 1810. UUU 
