Aroidecr.] 



SOCIETY ISLANDS. 



71 



1. Oberonia brevifolia. Lindl. in Gen. et Sp. Orch. p. 16. — Epidendrum equitans. " Forst. 

 Prodr. n. 316." — Cymbidium equitans. Sw. — Thouars Orch. Afr. t. 92. — Pleurothallis dis- 

 ticha. Ach. Rich. Orch. Maurit. p. 55. t. 8. f. 1. 



2. Oberonia Myosurus. Lindl. in Wall. Cat. of PI. of E. hid. C. n. 1947. Gen. et Sp. 

 Orch. p. 16. — Epidendrum Myosurus. " Forst. Prodr. n. 317." — Dendrobium Myos. Sw. 



1. Dendrobium hiflorum. Sw. — Lindl. in Gen. et Sp. Orch. p. 78. — Epidendrum biflorum. 

 " Forst. Prodr. n. 318." 



1. Cirrhopetalum umbellatum. Reinw. — Cirrhopetala Tbouarsii. Lindl. in Bot. Reg. sub 

 tab. 832. — Zygoglossum umbellatum. Reinw. in Bot. Zeit. SyU. PI. Nov. p. 5. — Epidendrum 

 umbellatum. " Forst. Prodr.'''' (non Sw.) 



Flowers of this curious plant without leaves are in the Collection. 



1. Calanthe veratrifolia. Ker in Bot. Reg. t. 720. Sims in Bot. Mag. t. 2615. — Limodo- 

 rum veratrifolium. Willd. — Flos triplicatus. Rumph. Amb. v. 6. p. 115. t. 52. f. 2. 



PTEROCHILUS. (Nov. Gen.) 

 Labelluni amplum medio depressum, superne utrinque in alam adscendentem acutam dila- 

 tatum, apice fimbriato-ciliatum. Perianthii foliola 3 exteriora ovata, a^qualia, patentia, 2 

 interiora linearia. Columna semiteres, superne utrinque producta. Anthera terminalis, 

 operculiformis, bilobata. Massa? pollinis — ? — Herba terrestris, radice fibrosa. Caulis 

 brevis foliosus. Folia ampla, membranacea, petiolata, basi dilatato-vaginantia. 



1. Pterochilus planfaginea. (Tab. XVII.) 



Radix e fibris paucis crassis flexuosis nigro-tomentosis. Caulis erectus, brevis, vix dioitem longus, petio- 

 loruni vaginis membranaceis circumvolutus. Folia ovata, membranacea, glabra, striata, subacumiuata, 4-5 

 pollices longa, basi in petiolum subaeque longiun attenuata. Scapus seu pedmiculus terminalis, 8-9 uncias 

 longus, erectus, llexuosus, hie illic bracteatus in racemum multiflorum terminans. Flores parvi. Bractea 

 pedicelli lougitudine, lanceolata?. Perianthium patens, foliola 3 exteriora ovata, aequalia : 2 interiora line- 

 aria, obtusa, recurva. LabeUum, ratione iloris, magnum, amplum, medio depressum, superne utrinque in alam 

 acutam ovatam adscendentem dilatatum, marginibus integris, apice obtusum, cihato-fimbriatum. Columna 

 semiteres, brevis, superne utrinque producta. Anthera hemisphoerica, biloba, biloculiu - is. Germen cla- 

 vatum. 



One specimen alone of this plant exists in the Herbarium, and this in a sufficiently perfect state to ex- 

 hibit a labellum of a very remarkable character, sufficient, we believe, to authorize us in constituting- of 

 it a genus distinct from any hitherto described. It covers, in consequence of its peculiar shape and size, a 

 considerable portion of the perianth, being- extended above into two erect wings, while below it is broad and 

 fimbriated at the extremity. 



Tab. XVII. Fig. 1, Front view of a flower; fig'. 2, Back view of do.; fig. 3, Anther-case; fig. 4, Interior 

 of do. : — magnified. 



Ord. XLV. DIOSCOREiE. Br. 

 1. Dioscorea bulbifera. Linn. 



Ord. XLVI. AROIDEiE. Jnss. 

 1. Tacca pinnatifida. Linn. 



