ICOSANDRIA. MONOGYNIA. SOS 



•'.owers are solitary and terminal, resembling those cf 

 some species of Cretxgiis but yellow? 



Species. l.T. tridentata. Collected in the recesses 

 of tlie Northern Andes or Rocky Mountains, by the late 

 Governor Lewis. 

 533. LYTHRUM. Z. (Loosestrife.) 



Calix 6 to 12-tootlied, tubular. Fctals 6, 

 equal, inserted upon the calix. 6'fl;;sitie supe- 

 rior, 2 to 4-cellcd, many-seeded. (Stamina 2, 

 6, 8, 10, and in some species 12.) 



Herbaceous; leaves alternate, opposite and verticlllatej 

 flowers vertlciilately spiked and terminal, or verticillHie 

 and aXiUar) subsoli"tai"y» purple. 



Species. 1. L. Sdlicaria. % verliciUatum. Obs. Sub» 

 aquatic, pulverulently pubescent; stem hexangular re- 

 curved, and often taking root at the extremities, some^ 

 times sutiruticose, leaves lanceolate, opposite and ter- 

 nately vei-ticillate, attenuated at both ends. Calix c, 

 8, 10 or 12-toothed. Flowers axillary, verticillaie, biter- 



r\^lfiiy ftg'j^t-xiga.tort. rttcilo S or o. Stt»nilnu i*, 10, fend 12, 



much exserted, petals undulated. Capsule roundish, al- 

 ways 3 or 4-celled, dissepimer.ts marginal; seeds ani'U- 

 lar. 3. virgatum. 4. alatum? Fn. Smoo^Ji and virga'e- 

 iy branched; leaves opposite, cordate-ovate, acute, sub- 

 petiolate, with a somewhat scabrous margin; angles of the 

 stem marginated; flowers axillary, solitary, muchionger 

 than the leaves, minutely petiolaie, hexandrous. Obs. A 

 very elegant and ornamental species; branches brown, at 

 first erect, at length reeurved, and then sending out nu- 

 merous axillary branchlets; flowers often double tiie length 

 of the leaves, deep and bright purple; leaves not much 

 larger than those of Thyme, which they soi ►- what resem- 

 ble, and L. SerpyUifolia would certainly have been a much 

 better name than the obscure one of aJatnin, a character 

 which in this species is scarcely if at all, more remarkable 

 than in L. Ili^ssofnfolia.—Sugma. conspicuously capitate; 

 capsule subc) lindric, 2-celled, flowers minutely bibrac- 

 teate after the manner of the genus. 5. lineare. Smooth 

 and virgate; leaves mostly opposite, narrow, linear and 

 acute; flowers axillarj', solitary, nearly equal with the 

 leaves, hexandrous. Obs. The leaves appear somewhat 

 succulent and opaque, length 6 or 7 lines, breadth about 

 1 line; flowers small and nearly white, bibracteate. 



&.\HyssopifoUa. Leaves alternate and opposite longer 

 than the flowers, linear lanceolate, subeUiptic; flowers so- 

 litary axillarv, hexandrous. Obs. Stern nearly simple or 

 sparingly branched fi'om the base*, quadrangular and some- 



