NEOTTEJE— DIURID.E. 517 
§ 2. Sepala lateralia basi saccata. 
20. PnasornvrLuM gibbosum. R. Brown, I. c. 
P. ovariis cylindraceis, spicà multiflorà imbricatà, sepalis obtusiusculis 
lateralibus papillosis coherentibus basique saccatis, petalis spathulatis 
levibus, labelli laminà oblonga obtusa papillosà, columnz laciniis mem- 
branaceis obtusis hinc medio unidentatis, anthere mucrone nullo. 
Hab. in Australia occidentali et meridionali; ad sinum Regis Georgii, Collie. 
(hab. s. sp. comm. soc. Linn. Lond.) 
Stem from 4 inches to more than a foot in height, with a single leaf as 
long as itself, near the middle, otherwise naked. Flowers membranous, 
striated, in a very dense blunt spike. 
21. PnasorHnvrLuM parvifolium. Lindl. Swan R. no. 260. 
P. ovariis clavatis, spicà pauciflorà obtusà, sepalis acuminatis lateralibus 
basi saccatis, petalis conformibus, labelli lamináà lanceolatà undulatá 
obtusa basi bilamellatà, columnz laciniis linearibus obtusis, antherá apicu- 
latà, rostello longissimo petaloideo. 
Hab. in Australia occidentali; Swan River, Drummond. (hab. s. sp.) 
A slender plant with a more thin spike and yellower flowers than P. 
gibbosum. Its stem has a short solitary linear spreading sheath above the 
middle. 
22. PRAsoPHYLLUM fimbriatum. R. Brown. prodr. 319. 
P. sepalis lateralibus infra approximatis et Juxta basin gibbosis : dorsali 
petalisque ciliatis, labelli lamin4 longissime fimbriatà, laciniis columnze 
bipartitis, anthere rostro elongato, 
Hab. in Australia ; ad Portum Jackson, R. Brown, in ericetis sterilibus ad 
littora, Maio, R. Cunningham. (hab. s. sp.) 
A slender plant about a foot high, with a single linear spreading sheath 
a little below the small brownish purple flowers. Spike many-flowered, 
1-1j inch long. 
CCXCIV. BURNETTIA. 
Perianthium connivens. Sepala et petala linearia, equalia, libera. Labellum 
multó minus, cuneatum, indivisum, subunguiculatum, inappendiculatum. 
Columna erecta, petaloideo-marginata, basi in lobulum utrinque pro- 
ducta. Anthera erecta, dorsalis, 2-locularis, apiculata ; clinandrio plano, 
immarginato. Stigma ovatum, obtusum, cum antherå parallelum. 
Herba pusilla, Tasmannica, caule bifloro, aphyllo?, lax? vaginato. 
This very curious genus is named after the late Mr. Gilbert T. Burnett, 
the first Professor of Botany in King's College, London, and author of the 
Outlines of Botany (2 vols. Svo. Lond. 1835), a considerable collection of 
Botanical information. 
It differs from Prasophyllum in the absence of lateral column-lobes ; 
from Genoplesium in the petals being distinct from the column, and the 
labellum flat. 
