Serpicula.'] Haloragece. 147 



acute, laciniate or ciliate at margin, glabrous; pet. truncate 

 much longer than sep. ; ov. globose, furrowed, glabrous, with 

 5 placentas, styles 3, much divided into blunt processes. 



Wet places in upper montane zone ; rather common. Fl. April, 

 August-November ; white. 



Also in India, Malaya, and Australia. 



Turns black in drying, and makes a vinous-purple stain on the paper 



When old the plant has exhausted the bulbil, which then become 

 shrunken, a new one being formed at its side. 



XLIX.— HALORAGE^E. 



Small aquatic or semi-aquatic herbs, 1. opp. or alt. or 

 verticillate, fl. minute, unisexual, monoecious, axillary; male 

 fl.: — cal. 4-fid or o, pet. 4 or o, stam. 1 or 4-8; fern. fl. : — cal.- 

 tube adnate to ov. segm. 4 or o, pet. o, ov. inferior, 1- 2- or 

 4-celled, ovules 4, pendulous, styles or stigmas 2 or 4 ; fruit 

 minute, indehiscent or separating into constituent carp., seeds 

 1-4, embryo in axis of fleshy endosperm. 



Pet. of male fl. 4 1. Serpicula. 



Pet. o. 



Submerged water plant 2. Myriophyllum. 



Creeping herb 3. Callitriche. 



Myriophyllum is found in the dry low country, Serpicula and Calli- 

 triche in the montane zone. 



1. SERPICULA, L. 



Small decumbent much-branched herbs, 1. opp. or alt., fl. 

 minute, unisexual, monoecious, axillary, male fl. stalked, female 

 sessile; male fl. : — cal. with short tube, segm. 4, pet. 4, stam. 8, 

 ov. o; fern, fl.: — cal.-tube adnate to ov. segm. 4, pet. and stam. 

 o, ov. inferior, 1 -celled, with 4 pendulous ovules, styles 4, short, 

 with large rayed stigmas ; fruit minute, indehiscent, hard, 

 1 -seeded. — Sp. 4; 2 in Fl. B. Ind. 



Fruit glabrous, strongly ribbed and tubercled . . 1. S. ZEYLANICA, 

 Fruit pubescent, not ribbed or tubercled . . . 2. S. HIRSUTA. 



1. S. zeylanica, Am. in Fl. /!. Ind. ii. 431 (1878). 



HaloragU oligantha, Arn. Pug. 18 (non Wight). S. indica (part), 



am. 123. C. I'. [46, 451, 447- 

 Fl. Ii. Ind. ii. 431. 



Sterns sometimes slightly woody at base, much branched, 

 decumbent, ascending or even erect, stout, glabrous ; 1. very 



