Disa. | ORCHIDE (Rolfe). 211 
The limits of the genus were extended by Bolus to include Lindley’s genera 
Menadenia, tae nelia, Forficaria, Penthea and Schizodium, which are here 
gaol numerous, usually under 2 in. (often under 
in.) long, but ide 4 in. in D. Hallackii, an oe 
a e or less vies elon ngated s 
r_ oblong, rarely slender, ‘celts 
dobbs 5 ated shorter cape 
+Plant t 2 to l onally r, usually 
with dense aod ee tia ie eae and small 
flow 
Leaves shine or oe eae .. (1) cylindrica. 
Leaves linear o 
scent remold cote a shallow sac or only a quarter 
as long as the 
Dorsal sepal 2-25 “lin. pee spur subobsolete (2) neglecta. 
Dorsal sepal 3-34 lin. long ; spur distinct ... (3) Pappei. 
ead heap or ra simple, over a third as 
as the lim 
anda Acie rast ; and more or less spirally 
twis 
Spur ord and about a third as — as the 
lim .. (4) brachyceras. 
Spur slender ‘id over att as long as dis 
limb .. (5) tenella, 
Leaves linear, n Sab 
Sepals about ty lin, hg seg <td .. (6) micropetala. 
Sepals 2 lin ong: 
. (7) picta. 
Spur jonauannouesy ait behind 
Spur not suleate behi 
Lateral sepals 2 tin. tong a 
. (8) obtusa, 
Lateral sepals 23h lin. long stati 
trifid .. (9) tabularis. 
ssa — and ‘tiform, with a anae oblong 
at eac rolay ¢ . (10) tenuicornis. 
+tPlant ay 10 
“8 wi — ioe or poet lax 5 
ee if escbe with 
pikes or ae 
Spikes Tax or ultimately somewhat lax ; leaves 
cauline, rarely subradical : 
piers pen or subclavate : : 
r inear ae ..- (11) longifolia. 
Leaves — or oblong-lanceolate, nar- 
wed a 
bait cepa ere) or regen leaves 
narrow .» (12) ocellata. 
Dorsal sepal ese ‘iow waa Sadak (13) uncinata. 
Leaves oblong, not coos i os at the 
base (14) Tysoni. 
ph peers or conical: 
broad and obtu 
peste conical, pack as ie icug asthe limb ... (15) stachyoides. 
ical, longer than the 
engi Ad con ~ ° (16).a€ 
3 
