ON PLANTS FROM ANNAM. 149 



or even less, sometimes 2 cm. Peduncles (of individual heads) gene- 

 rally 1-2 cm. in length, their bract when present about 1 mm. long. 

 Involucres about 7.5 x 4 mm. ; outer leaves usually 2-3 x .5-1 mm. ; 

 inner 7 x 1.5 mm. Corollas 1 cm. long, of which the oblong 5-toothed 

 ligule claims 7 mm. Achenes (including the 1.5 mm. -long beak) 6 mm. 

 long, barely .5 mm. broad, much compressed, straw-coloured. Pappus 

 5 mm. long, apparently persistent. 



The frequently branching, almost leafless habit, with the 

 strong quadrangular stem and branches, serve to identify this among 

 its nearest allies. 



ASCLEPIADACEAE. 



By S. Moore. 



161. Toxocarpus Klossii S. Moore, sp. nov. 



Planta scandens. Caulis volubilis ramosus, fulvo-sericeus 

 deinde glaber. Folia petiolata anguste oblongo-ovata apice basique 

 obtusa coriacea supra glabra pallideque nitida subtus praesertiin in 

 nervis fulvo-sericea. Cymae terminales leviterve extra-axillares foliis 

 saepius breviores pedunculatae ramosae pluriflorae fulvo-senceae. 

 Flores pro rata majusculi breviter valideque pedicellati. Calyx sericeus 

 segmentis ovato-oblongis obtusiusculis. Corollae tubus calyce 

 paullulum brevior, lobis oblongo-lanceolatis sursum curvatis apice 

 acutis glabris. Coronae phylla quam antherae paullulum longiora 

 gynostegio prope basin imposita linguaeformia obtusa intus appendice 

 parvula filiformi instructa; retinacula linearia. Stylus filiformis 

 longit. petala fere semi-aequans apice subaequaliter biramosus. 



Tour Cham. 



Stems slender, the young branches much twisted. Leaves up 

 to 7 x 2.8 cm., more often about 4.5-6 x 2-2.3 cm., drying greyish, 

 paler below ; midrib impressed above, prominent below ; side-nerves 

 4-5 on each half of the leaf, and. but little visible on its upper 

 face ; petioles stautish, fulvo-sericeous, 5 mm. or less in length. Cymes 

 usually 3-5 cm. long; the peduncle more or less 1 cm. Pedicels 1 mm. 

 in length or rather longer. Flowers yellow. Calyx 2.5 mm. long. 

 Corolla with 2 mm. long tube and 6.5 mm. lono- lobes. Corona 



VOL. IV, NO. 3, 1921. 



