Zornia LEGUMINOS^E 31 



dispersed through the warmer regions of the world, the rest 

 all tropical American, chiefly Brazilian. 



Leaflets 2. Flowers in spikes 1. Z. diphylla. 



Leaflets 4. Flowers solitary ± Z. tetraphylla. 



1. Z. diphylla Pers. Syn. ii. 318(1807) (with var. ciliata Pers.; ; 

 leaflets 2 ; flowers in spikes. — Benth. in FI. Bras. xv. pt. 1, 80, 

 tt. 21, 22; Griseb. Fl. Br. W. Ind. 185 ; Urb. Symh. Ant. iv. 289. 

 Z. reticulata Smith in Bees Cyclop, xxxix. (1818) ; Macf. Jam. i. 

 261. Hedysarum diphylluiu L. Sp. PI. 747 (1753) ; Bw. Obs. Bot. 

 285. Hedysarum minus diphyllum &c. SloaneCat. 73 & Hist. i. 

 185 ; Houst. Cat. MS. f. 62. Onobrychis maderaspatana &c. 

 Pluk. Phyt. t. 246, /. 6, Aim. 270. Hedysarum herbaceum 

 procumbens &c. Broivne Hist. Jam. 301. (Fig. 9.) Type in Herb. 

 Mus. Brit. 



St. Jago de la Vega, Sloanc Herb. ill. 89 ! Old Harbour, Browne ! 

 Liguanea, Broughton ! dry pastures ip south side, Macfadyen ; Purdie ! 

 WuUschlaegel ; March ! Prior ; amongst grasses in the savanna, Two Mile 

 Wood Pen, St. Catherine, Harris ! Fl. Jam. 12,070.— Tropics. 



Herbaceous, diffuse or ascending, glabrous or pubescent-villose. 

 Branches short or long, 1-5-4 dm. 1. Leaflets 2, lanceolate, the lower 

 shorter, elliptical, 1*5-4 cm. 1. Bracts elliptical to lanceolate, 1-1-2 cm. 1. 

 . Calyx about 3 mm. 1. Corolla yellow ; standard - 8-1 cm. 1. Pod puberu- 

 lous, reticulate, more or less covered with spines, 2-6-iointed; joints 

 rounded, about 3 mm. 1. 



2. Z. tetraphylla comh. nov. (non Michx.) ; leaflets 4 ; flowers 

 solitaiy. — Z. myriadena Benth. in Fl. Bras. xv. pt. 1, 85 (1859). 

 Z. Sloanei Griseb. op. cit. 709 (1864). Quadrifolium erectum 

 flore luteo Sloane Cat. 74 & Hist. i. 186, t. 116,/. 3. Ornithopus 

 tetraphyllus L. Syst. ed. 10, 1168 (1759), Amoen. v. 402 & Sp. 

 PL ed. 2, 1049. Myriadenus Desv. Journ. Bot. i. 121, t. 4, /. 11 

 (1813). M. tetraphyllus DC. Prodr. ii. 316 (1825) ; Macf. Jam. i. 

 260. Type in Herb. Mus. Brit. 



Savanna, near Two Mile Wood, Sloane Herb. iii. 921 — Cuba, Brazil. 



Stems woody at the base, diffuse, slender, branching, puberulous. 

 Leaflets usually 4 (sometimes 3), 1-1-3 cm. 1., or sometimes less near the 

 flowers, oblanceolate, apex rounded or retuse, glabrous or sometimes 

 puberulous on the margin, dotted with pellucid glands. Peduncles one- 

 flowered, solitary in the uppermost axils, 2-3 mm. 1. Bracts elliptical, 

 glandular-dotted, ciliolate, 4-5 mm. 1. Calyx about 3 mm. 1. Corolla 

 yellowish, 12-13 mm. 1. Pod glandular-dotted, glabrous or minutely 

 puberulous with stellate hairs, 2-10-jointed ; joints somewhat rectangular, 

 about 2 mm. 1. 



10. DESMODIUM Desv. 



Leaves piunately 3-foliolate (reduced to a single leaflet in 

 D. triquetrum and D. gangeticum). Stipules striate, dry. Racemes 

 terminal or sometimes also axillary, simple or paniculate. Flowers 

 1, or 2 or more in small clusters along the rhachis, or in a simple 



