44 



FLORA OF JAMAICA 



Doratenia 



1. D. eordifolia Sw. Prodr. 31 (1788) ; leaves cordate. — Sw. Obs. 

 Bot. 51,L7,f.2 & FL Ind. Occ. 275 ; Griseb. Fl. Br. W. Ind. 154. 

 (Fig. 12.) 



Near Dolphin Head, Purdiel Near YS, Wullschlaegel, 1316! Tyre, 

 near Troy, 2400 ft. ; road from Askenish to Dolphin Head, 1000 ft. Harris I 

 Fl. Jam. 8690, 8808, 9266. 



Rhizome nodose, long, rooting along its whole length. Leaves ovate- 

 roundish , ovate or elliptical, cordate at base, apex obtuse, rough, sometimes 

 with scattered tuberculate hairs above, pubescent underneath on the 

 nerves, limb 3-6'5 cm. 1., 2-4*5 cm. br. ; petioles 4'5-12-5 cm. 1., slender, 

 pubescent. Beceptacles peltate, 8-10 mm. in diam. ; margin with about 

 12 teeth, 2 mm. 1., underneath rough with short rigid hairs ; female flowers 

 in the centre, male flowers near the margin of the receptacle, peduncle 

 about 2 cm. 1. 



Fig. 12. — Dorstenia eordifolia Sw. 



A, Plant. 



B, Inflorescence seen from above. 



C, Section through portion of re- 

 ceptacle showing male (tn) and 

 female (/) flowers. 



D, Stamen. 



E, Pistil. 



2. D. jamaicensis Britton in Torr. Bot. CI. Bull. xxxv. 567 

 (1908) ; leaves peltate. 



On vertical limestone cliffs, Somerset, Manchester, J5nWo»i 3737; Harris 

 d Britton ! Fl. Jam. 10,607. 



Rhizome erect, about 2 cm. 1., 5 mm. br. Leaves ovate to ovate-roundish, 

 peltate below the middle, papillose-rough above, shortly tomentose under- 

 neath, limb 3-5 cm. 1., 1*5-4 cm. br. ; petioles 3-12 cm. 1., pubescent. 

 Receptacles peltate, 8-10 mm. in diameter, purplish, puberulent, margin 

 with about 20 teeth • 5 mm. 1. ; peduncle about 2 cm. 1. ; flowers dark- 

 purple. 



4. PSEUDOLMEDIA Tree. 



Trees with milky juice, leaves shortly stalked, entire, 

 thinly coriaceous, penniveined ; stipules intrapetiolar, small, very 

 caducous. Flowers dioecious, male in sessile axillary capitula, 

 female solitary, sessile, axillary, the receptacle of both sexes 

 involucrate with bracts in several series. Male flowers : perianth 

 wanting. Stamens (each representing a flower) numerous on a 



