12 DIDYNAMIA GYMNOSPERMIA. PhloimS. 



quarters of an inch broad. Verticeh numerous, from six 

 to twelve flowered. Involucres few, linear, erect, many 

 times shorter than the calyx. Fhwt'rs white. Califx straight, 

 widening-, ton striated, ten toolhed. Carol ; vj)per lip erect, 

 vaulled, hairy ; ntuler lip horizontal, broad, three-lobed ; mid- 

 dle lobe slightly four-parted. 



9. P. hi flora. Willd. iii. 124. 



Creeping, four sided. Leaves petioled, ovate oblong", ser- 

 rate, smooth. Floivcrs in axillary pairs; calyx toothed, al- 

 ternately smaller. 



Leucas foliis rotundis, serratis, flore albo, Bnrm. Zeyl. 

 140. t. 63./*. 1. agrees pretty well with this plant. 



It is common about Calcutta; and in flower most part of 

 the year. 



Stems or branches perennial, ninnerous, creeping; when 

 young four-sided, almost smooth. Leaves opposite, petiol- 

 ed, erect, ovate oblong, posterior sides entire, interior gross- 

 ly ovate, smooth. Flowers generally solitary, though some- 

 times in pairs, axillary, peduncled, white. involucres few, 

 very small, subulate. ( alifx funnel-shaped, ten-slriated, 

 ten-toothed, teeth alternately smaller. Carol, of two lips 

 nearly equal in length ; the upper one erect, vaulted, and very 

 hairy ; the mider one very broad, and three-parted. 



10. P. pilosa. Roxb. 



Perennial, erect, hairy. Leaves cordate, serrate, soft and 

 hairy. Flowers axillary, sub-solitary, sessile, naked. Calyx 

 wiU) an even, ten toothed mouth. 



A nalive of Bengal, where it flowers during the rains. 



Root perennial. Stem and branches erect, four-sided, soft 

 and hairy. Leaves opposite, short petioled, oblong cordate, 

 serrate, hairy and very soft, about two inches long, by one 

 or one and a half broad. Flowers axillary, generally soli- 

 tary, naked ; sub-sessile, white. Calyx ten-striated ; mouth 



