Conyza. POLYGAMIA SUPERFLUA, 429 
7. C. diffusa, R. 
Annual, erect, lower branches long, spreading, or droop- 
ing, downy. Inferior leaves sub-lyrate; superior, sessile, 
oblong, serrate-dentate. Flowers terminal. 
A native of Bengal, where it appears during the dry season, 
8, C. fistulosa, Roxb. “ 
Annual, erect, fistulose, downy, Leaves sub-sessile, lan- 
ceolate, sinuous-toothed. Spikes sub-verticelled, 
Annual, a native of dry ground near the mountainous parts 
of the coast. It flowers during the cold season. 
Stem erect, from two to three feet high, piped, branchy, 
striated, downy. Leaves sub-sessile, broad-lanceolate, a little 
hairy, the lower ones sinuous-toothed ; the swperior ones irre- 
gularly toothed ; size various. Spikes terminal, sub-verticel- 
led, long, erect. Flowers numerous, pretty large, purple 
and yellow. Female florets numerous, minute, three-toothed, 
Hermaphrodite twenty in the centre. 
9, C. angustifolia, Roxb. 
Annual, erect. Leaves sessile, linear, entire, downy, Pa- 
nicles terminal; flowers most numerous. 
This plant is annual, and I have only met soi it in “a 
Company’s Botanic garden ; it does not appear to bea native 
of Bengal. [ rather suspect the seed to have been aécidental- 
ly brought in boxes of earth, with other plants from the An- 
damans, . 
Stem simple, erect, striated, somewhat scabrous, without 
branches till within a foot, or eighteen inches of the top, where 
there are several, forming a large oval panicle, the whole 
height of the plant from four to eight feet, Leaves alter- 
nate, sessile ; those of the stem most remotely serrate, and re- 
flected ; those of the branches entire ; all are linear-lanceolate, 
or linearly-clavate, and covered with short hairs; size very 
various. In the axills there are always several small leaves. 
Flowers most numerous, small, of a very pale yellow. Pani- 
