THE VEGETATION OF THE DISTRICT OF 
434. Heliotroplum strigosum Willd. VAR. brevifolia. 
Minbu district. 
Distribution, of the variety. — Throughout India and Burma. 
435. Heliotropium indicum Linn. 
Irawaddy bank. 
DrSTRlBUTlON.— Throughout the tropics. 
354. Trichodesma Br. 
436. Trichodesma indicum! Br. 
Minbu district. 
Distribution. — Throughout India— including the Bengal plain — » 
and Burma, Western Asia, East African islands. 
LXI. CONVOLVULACE;®. 
255 . Argyreia Lour. 
437 . Argyreia Burneyi n. sp. 
A scandent shrub, branches terete, as thick as a goose quill or 
pencil, covered with a dense soft silky grey tomentum, Leaves 
petiolate, cordate, entire, apex blunt and basal sinus large, upper 
surface of lamina sparsely tomentose, lower surface and petiole 
covered, like the branches, with a dense soft silky grey tomentum. 
Lateral nerves prominent on lower surface io-ii pairs. Petiole 
about 5*6 cm. long, lamina about 13*8—15 cm. from insertion of 
petiole to apex, and about 30-23*8 cm. broad at its widest part. 
Flowers in terminal corymbose peduncled cymes, densely tomentose, 
peduncles 3-flowered. Outer bracts large, petioled, leaf-like, cordate, 
acute, with base ob tuse, exceeding the cymes, inner bracts small, 
sessile, densely tomentose. Sepals tomentose without and within, 3 
outer broadly oval 1 *8 cm. long, 1*4 cm. broad, 2 inner smaller 
1*2 cm. long and 9 mm. broad, cordate-acuminate with base obtuse. 
Corolla funnel-shaped 6 5 cm, long, softly hairy externally. Fruit 
not seen. 
Ava, Mrs . Burnty ! Minbu district, Shaik Mokim ! 
This species comes nearest to Argyreia Roxburghti Choisy, from 
which it is, however, easily enough distinguished by the large size of 
its leaves, its closer denser tomentum all over, its considerably fewer 
flowered cymes, and its large calyx. The species was first collected 
by Mrs. Burney, wife of Colonel Henry Burney, resident at the court 
of Ava from 1830 to 1837, and her specimen was the only one in the 
Calcutta Herbarium until the present specimens were collected in 
Minbu in 1903. 
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