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PTEROSTYLIS ACUMINATA. ACUMINATED 
PTEROSTYLIs, : 
KKK KKK EKER EKER ERE EEE 
Class and Order. 
GyNnAnDRIA Monanpria. 
He scte ie aegect sarc a 
( Nat. Ord.—OrcuipeE. ) 
Generic Character. 
Perianthium ringens, tetraphyllum, foliolo inferiore bi- 
fido, (€ duobus infra cohzrentibus conflato). Labellum 
unguiculatum, subinclusum. Lamina basi appendiculata 
Vv. gibbosa. Ungue infra labio inferiore connato. Columna 
basi galed connata, apice alata. Anthera terminalis, per- 
sistens, loculis approximatis. Masse pollinis in singulo 
loculo bine, compress, pulveree. Stigma medio columne 
adnatum.—Herbe terrestres, glabre. Bulbi nudi, indivisi, 
caudicem descendentem radiciformem terminantes. Folia 
nunc radicalia stellata, nervosa, membranacea, scapo brac- 
feato aphyllo; nune caulina alterna, radicalibus nullrs. 
Flores solitarii raritisve racemosi, ochroleuci, sepiis majus- 
culi. Br. : 
Div. I. Appendix apice diviso, penicillato. Folia radt- 
calia stellata. Scapus bracteatus, aphyllus. Br. 
Specific Character and Synonyms. 
Prerostyuis acuminata ; foliis radicalibus stellatis, bractea 
scapi preter floralem unica, flore erectiusculo, labio 
inferiore param longiore, galeé acuminata, labelli la- 
mina integra : apice attenuata exserta columnam supe- 
rante. Br. 
Prerosryzis acuminata. Br. Prodr. Fl. Nov. Holl. v.1. p. 
326. Spreng. Syst. Veget. v. 3. p. 715. 7 i 
‘tenses 
This is the fifth species of the singular Australian Genus 
-TEROsTYLIs, which we have had the privilege of figuring * 
the 
