80 



cxxiiic. HORACES (Hutcliinson). 



[Ficuif. 



Key to the Subgenera. 



Ostiole (mouth) of the receptacle with the bracts visible from outside and 

 spreading transversely across the orifice. 



Basal bracts of receptacles arranged in a single whorl at the apex of the 

 peduncle, none either on the peduncle or over the surface of the receptacle. 



Male flowers with 3-6 stamens ; leaves toothed or 



lo bed, scabrous I. Carica. 



Male flowers usually with 2 stamens ; leaves often 

 toothed and scabrous or hairy 



II. Syoomorus. 



Male flowers with a single stamen ; leaves always entire 



and nearly always smooth, rarely hairy or scabrous IV. Urostiqma. 



Basal bracts scattered on the peduncle and over the 



surface of the receptacle, sometimes very small . . . III. Sycidium. 



Ostiole of the receptacle pore-like and more or less 2- 

 lipped, with all the bracts descending abruptly into 

 the receptacle and not visible from outside 



V. BlBRACTEAT.^. 



Subgenus I. Carica, Miq. — Leaves scabrous, alternate, variable, when undivided 

 ovate and acuminate, often 3-lobed to near the middle or more obscurely 5-lobed ; 

 stipules caducous ; receptacles axillary or subaxillary, stipitate, with 3 basal 

 bracts arranged in a whorl ; ostiole with several imbricate bracts visible from 

 outside, the outermost spreading horizontally across the orifice ; male flowers 

 with 3-6 stamens. 



Only tropical African species 



1. F. palmata. 



Subgenus II. Sycomorus, Gasp. — Leaves alternate, ovate, suborbicular or rarely 

 lanceolate, entire or repand-dentate, glabrous, hairy or scabrous ; stipules mostly 

 caducous ; receptacles arranged in leafless panicles borne on the main stem or 

 older branches, rarely solitary and ancillary, usually rather large, with 3 basal 

 bracts arranged in a whorl, and rarely also a few extra bracts scattered over the 

 surface ; ostiole with numerous imbricate bracts visible from, oviside, the outer- 

 most spreading horizontally across the orifice, the inner descending into the 

 receptcLcle ; male flowers mostly with 2 stamens, very rarely only 1 or 3 ; 

 perianth at first completely enveloping the stamens. 



♦Leaves entire or equally toothed all round the margin. 



Receptacles borne in panicles on the main stem or 



on the principal branches, rarely also a few of 



them in the axils of the leaves (see 4, F. 



mallotocarpa, and 8, F. Sur.) : 



Stipules persistent for some time ; panicles long 

 and slender, with short lateral branches race- 

 mosely arranged ; receptacles setose-pilose 2. F. vogeliana. 



Stipules caducous ; panicles thrysoid or rarely 

 subracemose ; receptacles glabrous, tomentose 

 or scaly-puberulous : 

 Mature receptacles tomentose : 



Leaves suborbicular or elliptic -orbicular, 

 entire 



Leaves ovate, coarsely dentate, hairy on the 

 nerves and midrib below 



Leaves mostly obovate, glabrous below 



3. F. Sycomorus. 



4. F. mallotocarpa. 



5. F. gongoensis. 



