IS 76.] Knowledge of the Burmese Flora.' 279 



Panicle rather compact ; pedicels short or very short ; leaves nigrescent, . D. nigrescens. 



Panicle lax ; pedicels slender ; flowers white or purplish outside ; leaves not nigres- 

 cent, I), paniculata. 



* * Woody climbers. (Leaflets blunt or retuse). 



Leaflets 11 — 13 ; panicles densely pubescent ; bractlets minute, D. volubilis. 



Leaflets 17 — 21 ; panicles glabrous ; bractlets small but conspicuous, D. stipulaeea. 



Subg. 2. Sissoa, Bth. Stamens united into a single slit sheath. 



* Erect trees. Flowers white. 



x Bractlets fallen long before expansion of the flowers. 

 Leaflets 3 — 7, almost orbicular to obovate, notched or blunt ; all parts glabrous, 



. . I), latifolia. 

 Young shoots appressed silky puberulous ; leaflets 7 — 11, more or less oblong, notched, 



or blunt, D. cultrata. 



x x Bractlets black, short and broad, deciduous but still present 

 at flowering time. 



Leaflets blunt, more or less notched and mucronate, , . , D. glaaca. 



Leaflets acuminate, smaller or more coriaceous, , D. ovata. 



* * Woody climbers. 



x Leaflets in 5- — 7 pairs ; inflorescence, etc., glabrous. 



Flowers blue ; panicle ample, terminal ; leaflets more or less oblong, D. foliacea. 



Flowers white ; panicles small, axillary ; leaflets more or less obovate, D. rubiginosa. 



x x Leaflets in 11 — 41 pairs ; inflorescence and young branchlets 

 rusty pubescent. 



Leaflets | — J in. long ; panicles or cymes very short, D. tamarindifolia. 



Leaflets 1 — 2 in. long ; panicle ample, D. velutina. 



1. D. cana, Grrah. in Wall. Cat. 5859 ; Kurz in Journ. As. Soc. 

 Beng. 1873. 70 ■ Hf . Ind. PL II. 237. 



Hab. Not tmf requent in the tropical forests, especially along choungs^ 

 all along the eastern slopes of the Pegu Yomah, and from Martaban down 

 to Upper Tenasserim.— Fl. March ; Fr. CS. 



2. P. purpurea, Wall. Cat. 5869 ; Bth. in Linn. Proc. IV. Suppl. 

 46 in part only; Hf. Ind. PL II. 235. 



Hab. Frequent in all mixed forests from Pegu and Martaban down 

 to Upper Tenasserim. — PL Pebr. March ; Fr. CS. 



3. D. glomeriplora, Kurz in Journ. As. Soc. Beng. 1873, 70 ; Hf. 

 Ind. FL II. 236. 



Hab. Pare in the upper mixed forests of the Yomah in the Prome 

 District, at 1000—2000 feet elevation.— FL March, Apr. 



4. D. nigrescens, Kurz in Pegu Eep. App. A. 48 and B. 45. 



Hab. Frequent in the dry forests, especially the mixed ones, of Prome 

 and Ava. 



N. B. Occurs also in Hindustan, where (according to Dr. Brandis) it 

 is a sacred tree. It is very near allied to the following, and in leaf and 

 flowerless at the time when J), 'paniculata is leafless and in full bloom. 



5. D. paniculata, Roxb. Corom. PL II. 8. t. 114 and Fl. Ind. III. 

 227 ; Hf. Ind. Fl. II. 236. 



36 



