Circaea.-} ONAGRACEAE. 517 



W. Coast and W. Ghats, in wet places up to 3,000 ft. 



An erect hairy undershrub, reaching 4-6 ft. high, with 



large flowers. 



2. Ludwigia, Linn. 



Herbs. Leaves alternate, petiolate, narrowly lanceolate, entire. 

 Flowers yellow, usually axillary, solitary, sessile or nearly so ; 

 pedicels with 2 bracteoles. Calyx-tiibe scarcely produced above 

 the ovary; lobes 3-5, acute, persistent or late deciduous. Petals 

 3-5, inserted below the margin of an epigynous disk. Stamens 

 as many as the petals and inserted with them ; filaments short. 

 Ovary inferior, 4-5-celled; ovules mairy, axile, attached in 2 or 

 more vertical rows to the inner angle of each cell ; style simple ; 

 stigma capitate. Fruit a linear or oblong 4-5-celled capsule, 

 opening by terminal pores or breaking up irregularly along the 

 sides. Seeds very many, small, smooth, with a narrow raphe; 

 cotyledons rounded. 



Capsule inflated, smooth, the seeds in many rows in each cell, not 



distinguishable through the Avails 1 . parviflora . 



Capsule not inflated, slender, the seeds in one row in each cell, 

 prominently distinguishable through the walls.... 2. prostrata. 



1. LUDWIGIA PARVIFLORA, Roxb. ; F. B. I. ii. 588; W. & A. 

 336 ; Wt. 111. t. 101. 



Almost all Districts, in rice-fields and other wet places. 

 An erect herb, up to 2 ft. high, the leaves lanceolate or 

 linear-lanceolate up to 3 in. long, the flowers small, the 

 capsule about '3 in. long. 



2. LUDWIGIA PROSTRATA, Roxb. ; F. B. I. ii. 558; Wt. Ic. 

 t. 762. 



W. GThats, swamps in the Anamalais at 2,000 ft. (Beddome). 

 A herb at first prostrate, then erect, the leaves lanceolate 

 with very slender petioles, together up to 3'5 in. long ; the 

 flowers very small, the capsule '5 in. long. 



3. Circaea, Linn. 



Herbs. Leaves opposite, petiolate, sinuate-dentate, membranous. 

 Flowers very small, white, pedicelled, in terminal and axillary 

 racemes ; bracteoles minute. Calyx-tube ovoid, shortly produced 



