6 



Group I 





ARTOCAETUS 



Anthocarps partially united, the apices being free, so that the surface of 

 le receptacle bearing the ? flowers is spiny or tuberculate. 



■ 



Section I. — The free apices of the anthocarps long and spiny. 



$ receptacle sub-globular, lobed I. A. Forbesii. 



? receptacle globular. 



With persistent bracts at its base ... 2. A. bract eat a. 

 Without persistent bracts at its base. 

 Leaves broadly orate, minutely and 



softly tomentose beneath .... 3 A. calopkylla. 

 Leaves obovate-elliptic, oblong, narrowed 

 to the base, sub-hispid, not tomen- 

 tose . 4.-4. rigida. 



$ receptacle oblong. 



Spines of ? receptacle conical, reflexed, 



hispid; $ receptacle deeply grooved. . 5. A. Kunstleri. 



Spines of $ receptacle straight, cylin- 

 dric ; $ receptacle long, thin, cylindric, 

 not grooved 6. A. hi / sat a. 



Section II. — Free apices of the anthocarps short, tubercular, i.e., 



with flat, rarely sharp, points. 



$ receptacle oblong. 



Leaves glabrous or nearly so. 



Adult leaves glabrous, ovate to ovate- 

 elliptic; ? receptacle cylindric, with 

 short, sharp tubercles 7. A. peduncularis. 



Adult leaves nearly glabrous, oblong - 

 lanceolate ; ? receptacle cylindric, with 

 broad, rather blunt, tubercles ... 8. A. Loicii. 



Leaves more or less hairy. 



Leaves ovate-oblong or obovate- elliptic, 

 cuspidate, coarsely and sparsely hispid, 

 stipules rather large ; ? receptacle with 



short, rather sharp, tubercles . . • 9. A. Polyphema. 

 Leaves obovate-elliptic, blunt, minutely 

 pubescent, stipules rather large ; ? 

 receptacle clavate, with broad, flat 



tubercles 10. A. Maingayu 



Leaves ovate-elliptic, softy pubescent 



beneath, stipules very large; <j> 



receptacle with flat, asperulous 



tubercles 11.-4. Sortechiniu 



Leaves broadly ovate, acuminate, crenate, 



stipules very large ; $ receptacle 



oblong, with transverse constrictions, 



tubercles flat ....... # 12. A. nobilis. 



