Mierotis.] CXX. ORCHIDER. 947 
The genus extends to New Zealand, wie in a single species to New pneter = : 
Indian Archipelago, and S. China, Of ‘the six Australian species, one 
New Zealand, another is the same as the. pire ck ie one, the iade ae a8 - 
endemic. The hab = the genus is that of the small-flowered Pras 
liar — s the same; it differs chiefly in the small rostellum oo eral appen- 
dages of the oat umn per the want of any long caudicle to the pollen-m. 
si sepal bro i and very concave; lateral sepals recurved. 
at 
ate. 
Flowers above 1 line long. eon m with a tubercle or callus 
on the disk near the end, the margin usually cris . 1. M. porrifolia. 
Flowers scarcely 1 line. Labellu oie Lore callus on dio 
the disk except at the base. Eastern s species ; 2. M. parviflora, 
"um about 1} lines. Dorsal sepal not so broad as in the fore- 
g- Labellum entire. Western species 3. M. media. 
ice) sepals revolute. Dorsal sepal acuminate, contracted at the 
base. _Labellum broadly ris fang r frin, ged .. 4. M. alba. 
“orm sepals spreading: but not recurve 
sepal very broad and ota 'Labellum entire, broad, 
DM quadrate, not callous. Flowers about j line long . . 5. M. atrata. 
Dorsal sepal not much broader than the lateral ones. abe um 
contracted in the middle. Flowers about 1 line long . . . 6. M. pulchella. 
porrifolia, Spreng. Syst. iii. 713. Usually tall s stout, 
e 
ruin but sometimes slender with the flowers distant in a long spike. 
“ee 
TE 
i 
S 
Hook. f. l.c. ; M. frutetorum, Schlecht. Kinrise; axi 
Queensland. Burnett river, F. Mueller; Moreton bay, C. Stuart. : 
S. Wales. Port Jackson to the Blue Mou ntains, 2. Brown, A. Cunningham, 
wi 
Wels and others; New England, C. Stuart. 
ct From Vale, Robertson, to IM Land, 
oria. Portlaud, Allitt, and Wendu Vale, 
F. Mueller, and in many other collections from various parts of the Colon 
T Abundant throughout the island, J. D. Hooker, and óthetk 
oe rom the Murray to St. Vincent's Gulf, J^ Mueller, Behr, and 
othe 
, The species is also in New Zealand, and «a to be = commonest form in South- 
Eastern Australia, not extending to the tro pu Pa Mueller proposes to unite it with 
the ud following ones under the name o 
M. parviflora, R. Br. Prod. 321. A more slender species than 
" porrifolia, the leaf and especially the sheath much narrower, the 
flowers smaller and less crowded in the majority of specimens although 
