XXXVi. KHAMNE.E. 411 



Calyx-tube produced above the ovary and disk, 

 J'Joivers sessile or nearly so. in cymes, often contracted fiito 



heads siirroHiulea by imbricate brown Lrat-ts 10. Stknanthemum. 



I' lowers solitary or in leafy spikes, sometimes contracted into 

 heads, or pedicellate, individually surrounded by brown 



bracts , ... 11. Ckyptandka. 



i^aiyx campauulate or tubular, the tube produced above the ovary 



and annular disk. Spines and small leaves opposite . . , 12. Discakia. 



1, VENTILAGO, G^rtn. 



Calyx 5-lobed, spreading. Petals hood-sliaped or none. Stamens 5, 

 scarcely exceeding the petals when present. Disk flat or concave, filling the 

 snort calyx-tube. Ovary more or less immersed in the disk, 2-celled i style 

 short, with 2 short erect stlgmatic lobes. Nut globular at the base, produced 

 ^ito an oblong or linear coriaceous wing, 1-celled and 1-seeded, indehiscent, 

 ^eed globular; testa membranous; albumen none; cotyledons thick and 

 neshy. Climbing shrubs or trees. Leaves alternate, penninerved. Flowers 

 small, chistered along the branches of axillary or terminal panicles. 



^ The genus is dispersed over the tropical regions of the Old World. The Australian Spe- 

 cies IS endemic, dilTering from the others in habit and foliage as well as in the absence of 



!• V, viminalis. Hook, in Mitch. Trap. Austr. 369. A small glabrous 

 J^'^e. Leaves narrow-lanceolate, 2 to 4 or even 5 in. long, entire, narrowed 

 into a petiole, coriaceous, the pinnate veins very oblique and sometimes almost 

 P^i'allel with the midrib, without the elegant transverse venation of the rest 



*^li^ genus. Panicles not much branched, or almost reduced to simple 

 racemes, shorter than the leaves, solitary or clustered in the axils. Calyx 

 '^'^out 1 line long. Petals none. Disk^entirely adnate to the short broad 

 pf^lyx-tube. Ovary slightly immersed in the di^k. Flint glabrous, about 1 

 in. lonrr^ including the wing, the turbinate adnate base of the calyx not attain- 

 ing above a quarter the length of the globular nut. 



?• -^^stralia. Nicholson river. Gulf of Carpentaria. F, Mueller. 

 Queensland, lli.irh sandy i-idges on the Maranoa, mtchelL 

 "'-S-MTales. Tributai-ies of the Upper Darling river. Bowman, 



2. ZIZYPHUS, Juss. 



Calyx 5*lobed, spreading. Petals hood-sliaped or rarely none. Stamens 



fl\^"nr^^^ in the petals or scarcely exceeding them, when present. Disk 



nat tilling the short calyx-tube. Ovaiy immersed in the disk, 2-, rarely 3- 



r^-celled; style shortly branched or styles distinct; stigmas small. Drupe 



^^oid or globular, pntanien woody or bony, 1- to 4-cclled, 1- to 4-seeded. 



J^^s with a smooth fragile testa; albumen none or scanty; cotyledons thick. 



irces or shrubs, usually aniu'd with stipular prickles. Leaves alternate, 



- or 5-nervcd, often distichous and very oblique, Tluwcrs small, green- 



^"^ lii axillary cymes. Fruit often edible. 



species 



es green on both sides, softly pubescent or villous, or at length 

 Scabrous. ■Drnm. ^n.nU o „.n..S 



endera 



^11 uuLu Piaes, somv puDesccnr or vinous, or ai icngm 



Drupe sn^all, 2-celled L 2. (E^ioylia. 



