424 xxxi. ZYGOPHYLLE.E. (Edgeworth & Hooker.) [Tribulus. 



SINDIT, Stocks, Vicary ; PANJAB, at Multun, Edgeworth. DISTRIB. Egypt, Arabia, 

 Nubia. 



Hispid and villous ; branches procumbent or ascending. Leaflets 5 pairs, subacute ; 

 stipules ovate, acute. Petals about equalling the sepals. Stamens 5 or 10. Fruit 

 broadly pyramidal, somewhat pointed ; cocci hirsute, 2-seeded, the spines confluent 

 into toothed wings. Fruit slightly bitter, eaten by the desert nomads in Multun. 



2. SEETZENIA, /;/-. 



A small prostrate glaucous herb, woody at the base, glabrous or woolly. 

 Leaves opposite, 3-foliolate; leaflets obovate, apiculate. YWwA-x axillary, 

 1-flowered. Flowr* small. ,s'. //.//> :>, linear-oblong, valvate, incurved at 

 the top. Petals 0. ])i*k small, 5-lobed. Stu ///'//.> 5, inserted on the disk, 

 filaments filiform glabrous naked at the base- ; anthers nearly globose. 

 Ort.tri/ oblong-clavate, sessile, pentagonal, truncate, fleshy, 5-celled ; styles 

 5, short, spreading, stigma* small capitate ; ovules solitary in each cell, 

 pendulous. Fruit ovoid, of 5 1-seeded eoeei. separating from the persistent 

 axis, with a narrow sucpulent exoearp on the back only, endocarp crus- 

 taceous. ,SV <//., oval, com]iresscd, testa thick with three skins, the outer 

 membranous, the middle one cellular and mucous, the inner coriaceous, 

 albumen thin ; cotyledons thickish. 



1. S. orientalis, J)c,. M Ami. Sc. Nat. ser. 2, iii. 280, t. 7; A'w. /'/. 

 Orient, i. <)!;. 



SIM. ii, N'or/.-.s-. ]','niri/. DISTRIB. Arabia, N. and S. Africa. 



Branches long and slander, smooth or papillose. A/^//Vx ih-shy, ', .', in. long, middle 

 one obovate emirate. lateral olili(|ue ; Bupufol triangular. /' t/i/i/f/c \ .', in., more or 

 less recurved at the tip, longer than the p-tio!,-. /'///// ellipsoid, ovoid or sub:. 

 J-j in. long, pendulous, tited* I'tisiform, smooth. 



3. Z.YOOPHYLLUIVI, Linn. 

 Small shrubs or prostrate herbs. Leav opposite, 1- or 2-foliolate, fleshy ; 



stipules 2, often spiny. /W/xy/r/.x I- or ^-tlowt-red, am<mg the stipules. 

 llo 



white, or yellow wit'j red or ]iurple spots at the base, f '/////.,: 

 4-5-partite, persistent or deciduous, imbricate. /'<?,//.< \:>. rhiwcd, imbri- 

 cate arid contorted. l)ik tleshy, angled, cup-shaped or concave. N//////r//x 

 8-10, inserted on the disk, longer than the petals, filaments filiform with a 

 scale at the base; anthers oblong. Ow/y/ sessile- upon the disk, 4-.Vcornered, 

 4-f>- (rarely 2-3-) celled, tapering into an angled style, stigma small ; ovules 

 2-ao, superposed, raphe free or o-dnate. Fruit capsular, 4- r )-cornered or 

 winged, indehiscent or septicidally dehiscent into 5 cocci, or loculieidally 

 5-valved, the endocarp sometimes separating. JSeetfs 1 or many in each cell, 

 pendulous, testa crustaceous, albumen scanty; cotyledons oblong. DISTKII;. 

 Upwards of 50 species, natives of the Old World, and chiefly Cape and 

 Australian. 



1. Z. simplex, Linn.; DC. Prodr. i 705; annual, leaves simple cylin- 

 dric. Boiss. Fl. Orient, i. 912. 



Sandy deserts; SINDH, Stocks, ricary ; PANJAB, at Multan, Edgeworth. DISTRIB. 

 Arabia, tropical Africa. 



A prostrate glabrous slender much branched herb. Leaves small, sessile, fleshy, 

 obtuse ; stipules lanceolate, acute. Peduncle as long as the obovate cucullate sepals. 

 Petals ppathulate. /Scales 2-parlite. Capsule deflexed, turbiuate, rough, of 5 com- 



