382 CXX. ORCHIDEJX. [ Diuris. 
but I have not seen it in any other collection. Bauer's Port Jackson plant of - same 
name, referred to by Reichb. f., l.c., is probably the yellow variety of D. maculat 
81. ORTHOCERAS, R. Br. 
Dorsal sepal on incurved, hood-shaped; lateral voie narrow- 
linear, lóng and erect; petals sho rt, erect, narrow.  Labellum 3-lobed, 
e middle lobe eni and contracted at the base, a thick calls on the 
disk between the lateral lobes. Column very short, with lateral erect 
lobes not connected behind the anther. Anther erect or slightly in- 
several sessile flow 
The genus is SU to ee single Australian species, found also in New Zealand. 
O. strictum, R. Br. Prod. 317. Stem DEM, erect, 1 to 13 ft. 
high. Leaves abvoral near the base, linear, a in. long, or one or 
two outer ones short and ico and 2 or 3 long sheaths with short 
erect lamin:e above the . Flowers distant, erect, in an interrupted 
ceeding the ovary, sometimes much longer than the dorsal sepal. 
hog run broad and very concave, much incurved, acute or obtuse, 
n. long, greenish or white outside, brown purple or yellowish 
inside lateral sepals antenna-like, slightly clavate ri 
long ; petals thin, not 2 lines long, truncate notched or toothed at the 
en 
the middle lobe twice as long and ovate, the callus between the lateral 
lobes broad and prominent, but variable in shape. Lateral lobes of the 
column often ae as Te p the petals. eia Tre and Sp. Orch. 
512; Reichb. f. Bei pueri Lindl. Le.; Diuris No tit 
tain. Rich. Fl. Nova “del. 163 
N. S. Wales. Port Jackson to the en D ay R. Brown, A. and R. Cun- 
ningham, Woolls, and others, but said to be very rare; towards ilsva; A. Cun- 
ning) 
rece 
Dandenong, F. Mueller; Glenelg valley, Robertson. 
S. Australia. St. Vincent's Gulf, F. Muell, Behr; Spencer's Gulf, Wilhelmi. 
The New Zealand plant does not appear to me to differ in the slightest particular. 
32. CRYPTOSTYLIS, R. Br. 
, extende 
Column | exceedingly short, the wings Tomiie Marty distinct auricles or 
connected into a "qnem beaks behind the anther, the margin toot thed or 
