Materials for a Flora of the Malayan Peninsula* 



371 



Fruifc superior. 



Armed trees or shrubs ; fruit drupaceous ... 1. ZiZTPHUS. 



Fruit half inferior. 



Unarmed erect shrubs ; fruit dry, 3-celled, 



3-seeded ... ... .. ... ... 2. Colubuina, 



Scandent unarmed shrubs ; fruit dry, 1-celled, 

 l-seeded (by abortion), epicai-p prolonged into a 

 long apical wing. 



Fruit indehiscent, apical wing not splitting 3, Vgntilago. 



Fruit dehiscent, apical wing splitting at 



least at tlie base ... ... ... 4. Smyi'hga. 



Fruit inferior, crowned by the persistent calyx, 



3- winged or triquetrous ... ... ... 5. Gouania. 



1. ZlZYPHUS, JuSS, 



Trees or sbrubs, often decumbent or sarmentose and usually armed 

 with sharp, straight or hooked prickles (tiansformed stipules). Leaves 

 alternate, 3-nerved, usually coriaceous. Flowers fascicled, or in sessile 

 or pedunculated cymes. Calyx 5-fid ; lobes spreading, keeled within ; 

 tube broadly obconical. Petals 5, rarely 0, cucuUate, deflexed. Disc 

 5-10-lobed, flat or pitted, with a free margin. Stamens 5. Ovary sunk 

 in the disc and confluent with it at the base, 2-4-celled ; styles 2-4, 

 free, or more or less united. Fruit fleshy or dry, with a woody or bony 

 1-4-seeded 1-4-celled stone. Seed plano-convex, albumen 0, or very 

 scanty. — DiSTRiB, Species about 60, found in tropical Asia and America, 

 and in the temperate regions of both hemispheres. 



Jlicaves pubescent underneath. 



Leaves uniformly tomentose beneath, broadly 

 ovate or sub-orbicular, blunt ; drupe glabrous, 

 with much pulp and bony endocarp ... 

 Leaves rusty-pubescent beneath, ovate-lanceolate, 

 oblique, acute ; drupe glabrous, with scanty pulp 

 and leathery endocarp 



Leaves rusty-pubescent beneath, elliptic-oblong, 

 acute or shortly acuminate, cordate ; drupe 

 rufous-tiimentose, with thin pulp and bony 

 endocarp 



Leaves sparsely pubescent beneath, ovate-lanc- 

 eolate, oblique, bluntly acuminate ; drupe gla- 

 brous, with thin pulp and leathery endocarp ... 



1. Z. Juj'uba. 



2. Z. Oeiio^Ua. 



3. Z. Kunstleri. 



Z. elegans, 

 657 



