COLLECTED IN DUTCH NEW GUINEA. 161 
undulatis crispis, basi paullo angustata, petiolis vaginantibus 5 mm. longis. 
Racemus gracillimus, 8 cm. longus, a basi ad medium bracteis paucis linearibus 
exceptis nudus. Flores parvi, dissiti, patentes. Bracteœ 3 mm. longs, lineares, 
acuminatz, deflexæ. Pedicelli filiformes, 5 mm. longi. Perianthium viride, 
9:5 mm. latum. Sepalum posticum oblongum, obtusum, erectum, lateralia deflexa, 
oblonga, latiora. Petala lanceolato-linearia, obtusa, recurva, breviora et angustiora. 
Labellum ambitu ovatum, auriculis angustis erectis lanceolatis acuminatis, sepalo 
postico paullo brevioribus, lamina in utroque margine dentibus longiusculis 3 
munita, apice acuminato obtuso integro, marginibus in discum e fovea magna 
eminentem elevatis. Columna brevis, crassa, stelidiis oblongis porrectis truncatis. 
Anthera parva, ovata, rostrato lato retuso. : 
Camps VIII to IX, 4900 to 5500 ft. 
A very curious little plant with an elongated leafy stem and a slender raceme of little 
flowers in which the petals and pectinate sides of the lip are curved backwards so as to 
be out of sight from in front; the unusually long pointed auricles of the lip stand up 
against the dorsal sepal, of which they are 2 the length. 
OBERONIA ($ CAULESCENTES) MARGINATA, Ridl., sp. nov. 
Caules congesti, 10-12 cm. longi, foliis 12-14 arcte tecti. Folia disticha, ensi- 
formia, acuminata, 5 em. longa, 5 mm. lata, herbacea. Scapus gracillimus, 15- 
18 cm. longus, basi 3 per cm. nudus. Flores minuti, virides, remoti, singuli vel bini, 
— rhachi marginata, alis 2 tenuibus translucentibus albis subdentieulatis. Bractee 
lanceolate, translucentes, denticulatsze, ovariis cum pedicellis cylindricis marginatis 
eequales, 2 mm. longs. Flos 1 mm. latus. Sepala ovata, integra. Petala sub- 
similia, angustiora. Labellwm brevius, late triangulare, apice truncato retuso, 
marginibus dentibus 8-10 pectinatis, nervis 2 a basin disjunctis versus apicem 
conjunctis. Columna brevis, crassa; stelidia parva, oblonga, truncata. 
Camp I, 500 ft. 
The rhachis and pedicels are margined with a thin, irregularly broken, transparent 
membrane, which is edged witb short clubbed or obtuse processes, or teeth, which also 
occur on the edges of the bracts. The flowers are very minute in proportion to the 
rather long pedicel and ovary, and are opposite to each other, singly or in pairs, for the 
whole length of the raceme. 
OBERONIA ($ CAULESCENTES) SPATHIPETALA, J.J. Sm. in Nova Guinea, viii. 21, fig. ix. 28. 
Camp VI a, 3100 ft. 
Distrib. Endemic in New Guinea. 
OsERONIA (§ CAULESCENTES) Krossrr, Ridl., sp. nov. i : 
Caules undique foliati, 15 cm. longi. Folia imbricata, erecta, ensiformia, curva, acuta, 
1:5 cm. longa, 4 mm. lata. Racemus gracillimus, 7 em. longus, rhachi ferme omnino 
florifera, floribus 7-8-nis minutis in verticillis 2 mm. distantibus. Bractee minute, 
lanceolate, integre, pedicellis subaequilongee. Pedicelli brevissimi, vix 1 mm. longi. 
SECOND SERIES.—BOTANY, VOL. IX. Y 
