644 PATAGONIAN EXPEDITIONS I BOTANY. 



and stamens inserted on a disk. Calyx adnate to the ovary, which is 3- 

 celled, its cells i-ovulate. Fruit drupaceous, with long embryo in axis of 

 fleshy endosperm. 



Species 85, most in N. Hemisphere. 



GRISELINIA Forst. 



Trees or shrubs, often epiphytic or climbing, glabrous, with thickish, 

 round or angular branches, and rather long, leathery, entire, spiny-toothed 

 or angled, alternate leaves, the petioles dilated at their base. Flowers 

 dioecious, 5-merous, small, yellow-green or dark purplish, in smooth or 

 hairy racemes or panicles ; bracts mostly small and deciduous ; male 

 flowers with 5 petals and 5 stamens. Style 3-parted or 3 styles. 



Species 7, S. Amer. and N. Zeal. 



G. RUSCIFOLIA (Clos.) Taub. (sub Decostea, now a section of the genus, 



having apetalous female flowers). 



Leaves lanceolate, rounded or obtuse at the base, not entire, often api- 

 cally 3-toothed with 3 principal, and also secondary veins. 



(S. Braz. ; Paraguay ; Chili) ; W. Patagon. (Fig. in Eng. and Prantl, 

 iii, 7, p. 270.) 



* 



Family 83. ERICACEAE. Heath Family. 



Shrubs, or occasionally herbs, with simple, exstipulate leaves, and reg- 

 ular, mostly sympetalous flowers, and mostly with hypogynous 5 (-4)" 

 merous perianth. Stamens twice as many as the corolline divisions (or 

 by abortion only as many), hypogynous or attached to the very base of 

 the corolla-tube, the anthers 2-celled, opening by pores or by short slits, 

 often bearing inferior appendages. Ovary several (3-10, mostly 5) -celled ; 

 style i. Seeds with endosperm. 



Species 1,350, cosmopolitan. The true heaths (Ericoidece] are almost 

 confined to Africa and the Mediterranean and Atlantic coasts of the Old 

 World. 



Neither the heaths (Ericoideae) nor the Rhododendrons are represented 

 in Patagonia. 



KEY TO THE GENERA. 



A. Ovary superior, not adnate to the calyx. Fruit loculicidal. Anthers ending obtusely, or as 

 short, erect-awned processes. 



