64 KEOBOT. 



only a few inches high, leaves very long ribbon 

 like, 3 or 4 inches in length, 2 lines broad ; fl. 

 few of a dull yellowish purple, peduncles as long 

 or longer, calix with 5 large equal teeth, nearly 

 urceolate, corolla almost as in Physalis, subro- 

 tate when full expanded. Thus habit of Cy- 

 nanchum rather than Convolvulus. 



896. HvDROLEA ovATiFOLiA Raf. pubcsccnt 

 inerme, leaves ovate acuminate, flowers termi- 

 nal fasciculate subsessile — very distinct sp. 

 ibund in Arkanzas by Nuttal, anonymous in 

 Coll, herb, stem simple pedal terete, leaves scat- 

 tered uncial, flowers glomerate calix lanceolate 

 hirsute, corolla blue puberulent, styles long, 

 stigmas capitate depressed. 



897. Hydrolea paniculata Raf, pubescent 

 spinose, leaves linear lanceolate acute, flowers 

 terminal paniculate, subcorymbose pedunculate 

 — found by Kin in Arkanzas, pedal, a short 

 stiff' spine at the axil of each leaf, panicle bear- 

 ing 3 to 7 flowers at the end of the spinose 

 branches, capsules bivalve globose, nearer to 

 Jf. spinosa of S. Amer. than to II. caroliniana. 



898. LiNUM REFR ACTUM R. Stem erect hard- 

 ly angular pauciflore, leaves linear acuminate 

 reflexed quite smooth upper oblong, branches 

 few erect uniflore, calix ovate acute uninerve — 

 Origon or Canada, pedal, leaves nearly uncial 

 elongate narrow, shorter almost oblong on the 

 branches, flowers apparently incarnate in the 

 dry specimen, collected by Walton. There are 

 other var. or sp. of Flax in N. Amer. L, vir- 

 ginicnm has var. oppositifollum, foliosum^ 

 pauciflorum Slc^ 



899. NEZERA Raf. differs from Linum, 

 calix with 5 segments unequal in size or shape, 

 Rtamens equal to calix, anthers oblong, styles 5 



