Tribulus 



ZYCoriiYLLACi:.i: 



165 



solitary on axillary peduncles. Sepals lanceolate to ovate, soon 

 falling. Petals obovate, deciduous. Stamens 10 in 2 series, 

 the 5 opposite the petals exterior and usually a little longer, the 

 5 alternate with a small gland at the base outside. Ovary 

 5-lobed, 5-celled : each cell divided by transverse partitions 

 into 3-5 compartments ; ovules one in each compartment 

 attached at the central angle. Fruit 5-coccous ; cocci few- 

 seeded, with 3-5 transverse compartments, at length separating,, 

 leaving no central axis, not splitting open. Embryo without 

 endosperm. 



Species 12, natives of tropical and subtropical regions of the 

 whole world, including south Europe. 



T. eistoides L. Sp. PL 387 (1753); Descourt, Fl. Ant. iv. 

 t. 250 ; Macf. Jam. i. 185 ; A. Gr. Gen. ii. t. 145 ; Grisel. Fl. Br. 



I iu. 53. T ribulx 



L. 



A, Flowering !>r;inch \\itli leaves X . 



B. Diagram t \\n\\t i . 



(', Flower cut lengthwise, calyx ami 

 corolla removed, .-li>\vin:_' pi-til \vitli 

 hypo^yiious li>k ('/), two stain 

 and one staminal :_-lan<l (.'/), X 4. 



D, 1'i'iiit somewhat enlarged. 



K. Coccus cut k>n:- p tlnu>e. 



enlarged. 



! . >eeil cut lcn.u'th\\ isc, 



(After A. (iray.) 



. Intl. \:\ I ; Enfjl. in FL B?,i*. xii. j't. 2, f.-.i : ]',// ,c I!,/,!!,, in 

 N. Anicr. FL .T./T. 109. T. torrcstris aiiifricnuus ^'c. Pink. PJii/f. 

 t. 07, /'. 4. T. foliis sex ju^.-itis &c. Browne ///>/. Jam. 220. 

 T. terrestris L. var. eistoides Oliv. FL Tn> r . Afr. i. 2S4 (186> 



