MACLOSKIE: SAXIFRAGACE/E. 461 



sterile and afietalous, with showy, petaloid calyx-divisions, chiefly in the 

 margins of the corymbs. 



Species 35, Himalayas, E. N. Amer. and S. Amer. 



HYDRANGEA INTEGERRIMA (Hook. & Arn. sub Cornidid). 



Large tree, with evergreen, coriaceous entire leaves ; and no sterile 

 flowers. Carpels 3, becoming separate ; seeds minute, numerous. Branches 

 with special involucre. 



S. Chili to Chronos Archip. 



H. SCANDENS. 



Climbing shrub. 



W. Patagon. (Dusen.) 



5. TRIBELES Phil. (Chalepoa Hook, f.) 



Creeping, smooth shrubs, with short leafy branches, and alternate, im- 

 bricating leaves, 3-angled at the apex. Flowets small, white, terminating 

 the branches (solitary or racemose?). Petals 5; stamens 5, hypogynous, 

 anthers globose, extrorse. Carpels 3, united in a superior, indehiscent 

 ovary. 



Only i species, viz : 



T. AUSTRALIS Phil. (Ch. magellanica Hook, f.) 



Leaves evergreen, oblong-cuneate, 12 mm. long, a tuft of dry ones at 

 base of the branchlets, and of green ones at the apex ; tip of leaves 3- 

 toothed. 



(S. Chili) ; Patagon., Fuegia to Cape Horn. 



T. philippi (Hook. f. sub Chalepoa] is only a synonym of T. australis. 

 It differs by the length of the peduncle, which is given as only 6 mm. in 

 T. australis and as 10-15 mm - i n T. philippi; but the flowers are nearly 

 sessile in their early stages. (Franchet.) 



This genus once referred to Pittosporaceae is now separated, because of 

 the absence of resin-ducts, and is placed in Saxifragaceae because of its 

 likeness to Escallonia. (Engl. & Prantl.) 



6. ESCALLONIA Linn. 



Trees or shrubs with angled branches, and alternate, evergreen leaves, 

 and 5-staminate, i-styled flowers, having a 2-3-celled inferior ovary. 

 Species 50, in the Andes and S. Brazil. 



