• CTANDRIA TRICKNlA. 



457 



jfok glabris ; foliis lanceo- I peduncles dotted ; sti- 

 latis, supra pubesceati- pules glabrous ; leaves 

 bus. E. lanceolate, pubescent on 



I the upper surface. 



Stem 2 — 3 feet high, geniculate, slightly anj^led, glabrous, rooghea^ 

 ed near the summit with e;landular dots. /^flre5 serrulate, glabrous 

 on the under surface, clothed with a very fine pubescence on the up- 

 per, 6—8 inches long, 2 — 3 wide, Fioivers somewhat paniculate, m 

 several simple spikes, 4—6 flowers in each fascicle, f^orolla small, 

 sprinkled with glandular dots, at first pale rose-coloured, then white. 

 Style as long as the corolla, twice as long as the stamens. Stigmas 

 capitate, fieed globular, compressed, mucronate. 

 . This ^lant bears great affinity to the P- Pennsylvanicum, with which 

 I believe it has generally been associated. It differs however iu the 

 dumber of stamens ; in its flowers, which are much smaller and less 

 crowded ; in its leaves, which are larger and less hairy; and in its 

 peduncles, which are never hispid. 



Grows in ditches and shallow ponds. 



Flowers July — October. 



10. PENNSYLiVANiCITM. 



P. floribus confertis, 8- 

 andris, semidigynis ; pe- 

 dunculis hispidis; ochrcis 

 glabris ; foliis lanceolatis, I stipules glabrous ; leaves 



Flowers crowded, oc- 

 tandrous, with the style 



3 cleft ; peduncles liispid ; 



parce pilosis. 



lanceolate, a little hairy. 



Sp. pi. 2. p. 448. Walt. p. 1 32. Mich* 1. p. 240. Pursh, 1. p. 27U 



Stem geniculate, angled. Leaves slightly acuminate, bianches and 



peduncles roughened with short hairs, secreting from their summits a 



viscid juice. Flowers large, rose-coloured, crowded in the spikes. 



Grows in ditches. Found more abundantly towards the Westeru 

 country. Pursh. 



Flowers June 



-August 



-i- 



H. Orientale. 



p. floribus 7-andris, S- 



Flowers heptandrous, 



gynis ; foliis ovatis ; caule | digynous ; leaves ovate ; 

 erecto ; ochreis hirtis, hy- I stem erect ; stipules liai- 



Sp. 



pocrateriformibus. 



Pl. S. p. 448. 



Pursh, 1. p. 272. 



An annual plant. Stem 5—5 feet high 

 vatc, sometimes slightly cordate, acute 



ry, hypocrateriform. 



Leaves Targe, remote, o- 

 and acuminate. Stipules 



-juV 



--•v 



k3 



iJS 



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