FLOUA OF THE ISLAND OF HONGKONG. 391 
and marginated, the outer herbaceous, somewhat puberuloua, much narroAver and rather shorter, and by ita 
blackish and smooth, shagi-eon-like, cylindrical aeh^nia, 4-41 lines in length, covered towards the apex with 
some scattered, rigid cilm, of which many, being somewhat triangular, are crowned with three short (1 line 
long;), almost concolorous arista,, whilst other achsnia are somewhat compressed, and crowned with two 
opposite aristae. 
310. BiDENs bipinnata, Linn., De Caud. Prodr. vol. v. p. G03. n. 65 + . Hongkong (Champion, 
teste cl. Benth.) t> b >. i > 
311. Cosmos candatus, H.B.K. Nov. Gen. vol. iv. p. 240.-De Cand. Prodr. vol, v. p. 606. n. 4. 
Hongkong. Scarcely indigenous, but probably naturalized (Hance !). 
312. Glossogyne tenmfolia, Cass, et Lcss.-De Cand. Prodr. vol. v. p. G32. n. 2.—Bidem tenui- 
foha, Lab. Sert. Caledon. p. 44. t. 45 ! Hongkong (Hance !). 
The acliffinia of this genus have the appearance of those of Bidens, but the ligula- are true female 
flowers, bearing a bifid style, and not sterile ones, as in Bidens, The aristfo of the achtenia are straiMit 
not much divaricate, as stated to be the case in G. pinnafijlda, De Cand, and the segments of the lea°ves 
tme linear. Moreover the whole plant exactly agrees with the instructive and chai-acteristic figure of 
Labillardiere's Sert. Caledon. 1. c. 
313. Pyretiirum Indicum, Cass. (?) Diet. 44. p. 149. non Roxb.— De Cand. Prodr. vol. %! 
p. 62. n. 49. Hongkong (Hance!). 
The single specimen is in too bad a condition to be determined with certainty. 
314. Pyretiirum Sineme, Sabin. Trans. Hort. Soc. vol. iv. p. 330. t. 14.— De Cand. Prodr. vol. 
vi. p. 62. n. 50. Victoria Peak and elsewhere (Champion, teste cl. Bcutb. ; Hance! Secmann !}. 
Truly indigenous. The specimens agree well with mine from Japan, received from my lamented friend 
Zuccarini. 
315. Pleiogyne cardiospermum, Edgw. in Trans. Linu. Soc. Loud. vol. xx. p. 71 + . In rice- 
fields^ abundant (Champion !). 
316. Artemisia Japonica, Thunb., Dc Cand. Prodr. vol. vi. p. 100. n. 41 + .— J. glahrata. 
Wall. Saiwau and some other places, but not common (Champion, teste cl. Benth.).* 
* Artemisia UvanduUfolia, De Cand. Prodr. vol. vi. p. 110. n. 94. Shanghai (C. P. Tounerre!). 
I am somewhat doubtful whether our plant really belongs to A, lavandulctfoUa, De Cand.. as I have not 
seen authentic specimens of it. The upper entire leaves are elliptical, 6-10 lines long, \-A.\ lines broad, 
attenuate at both ends, very acute, with a somewhat callous tip, and not linear, as stated by De Candolle. 
The lower leaves (unknown to De Candolle) are pinnatifid, with two or three pairs, or trifid, the leaflets 
decurrent along the midi-ib; otherwise of the same size and shape. Most of the leaves, the lower divided 
ones, as well as the upper entire, are stipellate-auriculate at their base, with two small stipella? on each side, 
which is not mentioned m De CandoUe's short diagnosis; otherwise it fully agrees. I should therefore 
suppose that it could belong to A. leptostacliya, De Cand. Prodr. 1. c. p. 113. n. 107 (also unknown to me), 
because this character is noticed in its diagnosis ; but in that species the leaves are said to be all pin- 
natiparted or trifid, and to be "subtus incana," whilst in our phmt they are densely tomentose, perhaps 
more so than in A. mtlgaris, Linn., of which it has the entire habit, but differing at first sight by its shorter 
and less divided leaves, and its somewhat smaller flower-heads, having the outer involucral scales much more 
