IMPATltNS, 
53 
Bracts persistent : 
Perennials, flowers racemose : 
Lip very small, spur very 
slender . . 13, /. elongata^ Arn. 
Lip deeply saccate, spur 
very short. . . 14 /. Walkeri, Hook. 
Annuals, stem simple : 
Lip infundibular, tip of 
spur involute . . I. cornigera^ Am, 
Lip with spur tubiform . i6. /, Arnotiii, Thw. 
Seeds covered with long spiral 
hairs : 
Spur long, slende£ : 
Stem simple, leaves few, lip 
saccate . . . . 17. 1 hw 
Stem branching, leaves many, 
lip cymbiform, spur long 
or short . . ,18. I. suhcordata^ Avt\, 
Spur very short (see also 
/. subcordata)^ stem simple. 
Leaves narrow^ spur short 
inflated : — 
Lip cymbiform, leaves 
subverticillate , . 19. /. leucantha, Thw. 
Lip cupular, leaves 
crowded . , 20. /. linearis^ Arn. 
Leaves broad scattered, 
lip scaphiform . 21. A apf^endiculata, 
Arn. 
Tl.— Speeias of the Malay Peninsala south of Burma. 
The paucity of species in the above region is a most remarkable 
feature in the phytogeography of Indian Balsams, only 7 
having been discovered in it ; a strange contrast to Burma north 
of it where Balsams abound. This limitation .is emphasized by the 
fact that not a single species is common to these two regions. The 
features and natural history of the 300 miles of country intervening 
between Southern Burma and the province of Wellesley in the Malay 
States being unknown, it is impossible to conjecture where this break 
D 
