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 486 ORCHIUEiE HORTI KEWENSIS.

��PTEROSTYLIS. Brown prodr. 326.

Labellum unguiculatuin : lamina basi appendiculata v. gibbosa. Cor. ringens petalis anticis inferne connatis et ungui labelli accretis. Columna superne alata. Pollen farinaceum.

1. P. obtusa, caule folioso unifloro lamina obtusa apice baud angustata, appendice penicillata. Broim jorodr. 327. Nat. of New South Wales. Robert Brown. 1/.

��CALEYA. (Caleana.) Brown prodr. 329.

Labellum unguiculatum posticum : lamina peltata cava, foraniine exteriore. Pollen farinaceum.

1. C. major, folio lanceolato-lineari piano, scapo medio unibracteato, lamina labelli laevi : utraque extremitate an- gustata semiovata. Brown prod. 329.

Nat. of New South Wales. Robert Brown. %.

��CALOPOGON. Brown mss.

Labellum posticum, unguiculatuin : lamina barbata. Petala 5 distincta. Columna libera. Pollen angulatum.

1. Calopogon pulchellus. Brown mss. 205] Cymbidium pulchellum. Willden. sp.pl. &,p. 105. Limodorum tuberosum. Curtis mag az. 116. Nat. of North America. %.

��ARETHUSA. Brown mss. Arethusae species. Swartz in act. Stockholm. 1800, p. 230.

Labellum inferne cum columna connatum; superne cu- cullatum ; intus cristatum. Petala 5 basi connata. Pollen angulatum.

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