52 GYNANDRIA. 
CENTROSIS. SwanTz, 
In Summ. Vegetab. Scand. p. 32. 
Char. ess: Corolla ringens, quinquepetala: 
petalis erecto-patentibus. | Labellum basi cal- 
caratum. — Znthera  opercularis persistens. 
Pollen pulvereo-granulatum. 
Locus inter 4rethusam et Epipactidem. 
CENTROSIS abortiva Swartz l c. 
Limodorim abortivum Sw. in Schrad. 
Neu. Journ, r:r B:d. p. 85. Orchis abor- 
tva Linn. Sp. PL Jacq. Fl. Austr, 1T. 
p. 5o. tib, 193. 
Hab. in Europa Australi. X. — ??). 
Obs. Genus a Serapiade me Jlo- 
re subclauso, Jabello valde calearato. 
THELYMITRA. Sw. 
THELYMITRA zzxzoides Sw. | 
Sm. Exot. bot. t. 29. Brown Prodr. Fl, Nov. 
Holl. I. p. 314. Swartz: in Act. Holm. 1800 
Ü3 Lu .ab d- 
Hab. in Nova Wallisia. — Y. 
Radix bulbosa. Caulis 2- 3-pedalis, simplex, 
teres, foliosus. 
Folia lineari-lanceolata, erecta. Spica mul- 
tiflora. 
. Flores cerulei, postice pallidiores. Cfr. Sm Dus | 
& Brown l. c. 
9?) Ex Sprengelii Systemate Vegetab. P. II. p. 
745 vidimus quidem, Petit Thouarsium novum 
etiam genus sub nomine Centroszs (C. sylvatica. 
Petit "T'houars) constituisse, quod vero a Spren- 
gelio ad A/etiam refertur. Igitur genus Centrosts, 
a Swartzio conditum, servetur. ^ — Editor. 
