346 105. Cassyth. SO.CONVOLVULACE^. Pl.ex.cor. 



Cassythu major. Great hellweed. 



Flowers nearly sessile ; stigmata pointed. 



Cuscuta major, C. Bauh. Pin. 219, 3, 



Cuscuta europaea, Lin. S. P. 180. 



Great dodder. Strangletare. Devil's guts. 



Parasitic on thistles and nettles; annual; August. 

 Stem bald; flowers transparent, reddish. 



Fam. XIV. 31. BORAGINE^, Jussieu. BuglossincE., 



Link. 



Calyx 5-cut; corolla hypogynous, l-petaled, mostly re- 

 gular, 5-cut, rarely 4-cut; mouth naked or with 5 scales; 

 aestivation inbricate ; stamens on the corolla, equal, alter- 

 nating with the lobes, rarely 0; ovary 1, free, 4-parted, 

 4-seeded, or simple 2 or 4- celled; ovules definite, pendu- 

 lous; style 1, on the gynobasis ; siigma 2-cut; coriopsides P 4;, 

 distinct or connate at the base ; perisperm ; corculuni 

 straight ; radicle above ; cotyledons leaflike. Herbaceous 

 or shrubby; leaves alternate, mostly rough; hairs conical, 

 usually not partitioned, stiff, often rough, filled with a 

 grumous mass, dilated at bottom, placed on a cellular tu- 

 bercle, often girt with cells at bottom, and very rarely with 

 other partitioned hairs placed among the others; stipules 0; 

 flowers mostly in a 1 -sided spike, rarely panicled or corym- 

 bose, something axillary, solitary. 



A. Cariopsides 4, topshape, distinct, 1- celled, imperforate at 

 the bottom ; gynobasis flat ; mouth of the corolla pervious. 



Co7-oZ/a funnelshape; mouth naked; tube 2 

 or 3 times as long as the calyx Mertensia. 1J4. 



C&r. funnelshape; mouth naked; tube twice 

 as long as the calyx ^Egonychon. 115. 



Cor. funnelshape, mouth with 5 gibbous 

 warts ; as long as the calyx Lithospermum. 116. 



Cor. funnelshape; mouth hairy; co/yx tubed, 

 or 5-angular Pulmonaria. 113. 



Cor. tubular; limb swelled, unequal; calyx 

 5-parted Echium. US. 



B. Cariopsides 4, topshape, distinct, 1-celled, imperforate at 

 the bottom ; gynobasis flat ; vioutk of the corolla closed. 



Cor. funnelshape; mouth closed with scales; 



cariopsides smooth Myosotis. 106. 



6 



