556 FLORA OF MADRAS. [Hydrocotyle. 



1. HYDROCOTYLE JAVANICA, Thunb. ; F. B. I. ii. 667. H. 

 polycephala, W. & A. 366 ; Wt. Ic. t. 1003. 



W. Ghats, in the Nilgiris and Pulneys, in shady places 

 at high levels. 



2. HYDROCOTYLE CONFERTA, Wt. Ic. t. 1002 ; F. B. I. ii. 668. 



W. Ghats, in the Nilgiris and Pulneys, at high levels in 

 wet places. 



3. HYDROCOTYLE ROTTJNDIFOLIA, Roxb. ; F. B. I. ii. 668; Wt. 

 Ic. t. 564. H. tenella, D. Don ; W. & A. 366. 



E. Ghats, hills of Vizagapatam, at 5,000 ft. ; W. Ghats, in 

 the Nilgiris and Pulneys, in bogs and on bare wet soil, up 

 to 7,000 ft. 



2. Centella, Linn. 



Prostrate herbs, rooting at the nodes. Leaves orbicular, crenate, 

 palmately nerved, deeply cordate with an angular sinus, long- 

 petioled ; stipules scarious. Flowers reddish, small, sessile, in 

 simple axillary few-flowered umbels ; involucral bracts 2, small- 

 Calyx, truncate. Petals minute, ovate, acute, imbricate. Fruit 

 laterally compressed, the mericarps with about 7-9 subsimilar 

 ridges, the secondary ridges as prominent as the primary, 

 reticulate between them, tittae ; pericarp thickened. 



CENTELLA ASIATICA, Urban. Hydrocotyle asiatica, Linn. ; 

 F. B. I. ii. 669 ; W. & A. 366 ; Wt. Ic. t. 565. 



All plains Districts in wet places, the borders of ricefields, 

 and on banks, up to 6,000 ft. in the hills. 

 A common trailing and rooting weed with leaves up to 2 in. 

 in diam., orbicular-cordate with rather shallow sinus. 



3. Sanicula, Lmn. 



Erect herbs. Leaves deeply 3-5 -partite, the segments again 

 lobed and mucronate-serrate, chiefly radical and long-petioled. 

 Flowers very small, mostly unisexual, in groups of about 3 umbels, 

 sessile in the forks and on the branches of a cyniose panicle, the 

 bracts sessile, leaf -like; umbellules usually small, few-flowered, 

 with few bracteoles. Calyx-lobes herbaceous, lanceolate. Petals 

 white, with long incurved points. Disk flattened, thickened round 

 the filiform styles. Fruit ovoid, not compressed, the mericarps 



