212 ORCHIDE& (Rolfe). [ Disa. 
Spur narrow and subacute sey si .. (17) stricta. 
f{Spike Ma J dense; leaves radical or subradical 
and elongate, ving . Hallackia : 
iets under 4 in 
Spur narrow or an “inflated ; Spike usally 
under 6 in 
Lip Feantad-chiine, gland-tipped . (18) sanguinea. 
Lip linear or subspathulate, not het 
ti 
os short, not Saga below the 
e of the lim .. (19) Sankeyi. 
a se ines site wtt the 
base of the limb 
os — oblong ; sa <aereae 
. (20) fragrans. 
se seen een lip siiues ... (21) polygonoides. 
Spur inflated ; spike 4 to over 1 foot long .., (22) chr yscetaehye: 
ers over 4 in. lon . (23) Hall 
**Flowers numerous, usually over Fin in. long (often mele 
larger), and arranged in r less dense 
limb, or clav: 
leaves boas broad ; lateral sepals ety vel 
or 
evens mal dorsal ~— 2-4 lin. long: 
Spur more or less recurved,from about the 
Spur under 4 in. long or shorter than the 
Cauline leaves mee - Pie a — - 
3-53 in. long, na: i . (24) extinctoria. 
Cauline leaves ratebing : spikes 4-9 in. : 
long, rather broader .. (25) Macowani. 
Spur over z in. long or not shorter than the 
nos sel, “he : lin. fone» ; a, ta about as 
.. (26) leta. 
ee pant ick sf lin, Long ; -— longer 
than the limb . (27) rhodantha. 
+tSpur ascending and nearly straight: 
Radical leaves elongate-oblon 
Spur subcylindrical, about twice as — as 
the li cab .. (28) caffra. 
Spur clavate, gins times as lity as the limb (29) Galpinii. 
Radical leaves broadly elliptic or orbicular _,,, (30) ovalifolia. 
net ing m orsal sepal 4 in. or more long : 
gee Zin ess lon: 
ore pers opine or ovate-oblong and 
owded : 
Dorsal rc rol — : - neers 3 fe or 
.. (31) cornuta. 
Dorsal sepal acute ; ip — or narrowly 
elliptic . (32) macrantha. 
a Saale Ra At ees ET eS a oe Sa 9 Tie Se acre 
: 
: 
‘a 
: 
i 
4 
