Victorian Plants. 267 



1222. Petals white. 



Diffuse, lax, almost glabrous ; leaves rather large, deeply 

 divided into three to seven almost lanceolar denticulated 

 or lobed segments ; lower leaves suprabasal-stalked ; 

 umbels many-flowered ; stalklets rather long ; fruitlets 

 much compressed, their dorsal angle expanded. 



H. geranifolia. 



Petals greenish or yellowish ... ... ... .. 1223 



1223. Leaves lobed to near the base. 



Almost glabrous, generally prostrate ; stems very thin ; 

 leaves quite small, cleft nearly to the base into three or 

 five wedge-shaped segments, each of the latter denticu- 

 lated along the summit ; umbels capitular, few-flowered ; 

 fruitlets minute, somewhat turgid. H. tripartita. 



Leaves short-lobed or only crenate ... ... ... 1224 



1224. Flowers very numerous in each umbel. 



Rather robust, beset with soft hairlets ; leaves cordate- 

 orbicular, with short blunt and crenate lobes ; umbels of 

 mainly staminate plants containing flowers with long 

 stalklets ; umbels of mainly pistillate plants capitular, 

 the petals of the latter dropping coherently ; fruitlets 

 nearly truncate, smooth. 



(H. laxiflora and H. densiflora. ) H. Canclollei. 



Flowers few or several in each umbel. ... ... 1225 



1225. Dorsal angle of fruitlets unexpanded. 



Creeping, beset with soft hairlets ; leaves from cordate- to 

 renate-orbicular, blunt- and short-lobed and also crenate ; 

 umbels capitular; fruitlets quite small, somewhat com- 

 pressed, slightly angular, smooth. H. hirta. 



Dorsal angle of fruitlets broadly expanded. 



Creeping, almost glabrous ; leaves from cordate- to renate- 

 orbicular, slightly lobed and somewhat crenate ; leaf -stalks 

 often of considerable length ; umbels capitular ; united 

 fruitlets broader than long. H. pterocarpa. 



1226. Majority of leaves divided to near the base. 



Small and sometimes very much reduced in size, nearly 

 glabrous ; leaves mostly divided into three wedge-shaped 

 somewhat denticulated lobes or segments ; umbels capitu- 

 lar ; fruitlets with three rather prominent angles and on 

 each side with a solitary groove, but without any foveoles 

 and wrinkles. H. callicarpa. 



