30:^ BOUACE fa:mily. 



of the style, triangular, roughened, and bearing one or more marginal rows of barb- 

 tipped prickles, forming small burs. Coarse weeds, wiih leafy-bractod racemed 

 flowers. 



•t- -t- Nutlets unarmed {sometimes sUghthj roitghened). 



++ Corolla tvheel -shaped, with no tube at all. 



4. BORAQO. Flowers, as in the six following, perfectly regular. A blunt scale at the 



base of each lobe of the 5-parted corolla, alternating with the conniving .stamens. 

 Filaments very short, broad, and with a cartilagino\is projection behind the linear 

 pointed anther. Nutlets erect. 

 (8. MYOSOTIS, and 9. 0.MPHAL0DE3, from the short tube to the corolla, may be sought 

 for here.) 



++++ Corolla tubular, funnel form, or salver-shaped, sometimes almost tvheel-shaped. 



== Throat of corolla open, the folds or short scales, if any, not closing over the orifice. 



; Fruit fleshy, smooth or icrinkled. 



5. MERTENSIA. Corolla tubular, trumpet-shaped, with the widely spreading border 



scarcely at all lobed and its throat perfectly naked in the common species ; the slen- 

 der tilaments protruding. Smooth plants, which is rare in this order. 



II II Fruit {or nutlets) hard, often stone-like. 



6. OXOSMODIUM. Corolla tubular, with the 5 acute lobes erect or converging, the throat 



jierfectly naked, bearing the arrow-shaped or linear and mucronate anthers; lila- 

 ineuts hardly any. Style very slender and protruding. Nutlets stony, smooth, H.^ed 

 by their base. Very rough-bristly homely plants. 



7. LITHOSPEliMUM. CoroUa funnel-form or salver-shaped, vnth rounded lobes imbri- 



cated in the bud, with or without evident short and broad scales or folds in the 

 throat. Anthers oblong, included ; filaments hardly any. Nutlets stony, smooth 

 or roughened, ovate, fixed by the base. Rough or hairy plants, mostly with red 

 roots. 



8. MY0S0TI9. Corolla very short-salver-form, the tube only about the length of the 



5-toothed or .5-cleft calyx, the rounded lobes convolute in the bud, the throat with 

 5 small and blunt arching appendages. Anthers short, included. Nutlets smooth 

 and hard, fixed by their base. Low and small, mostly soft-hairy plants, the small 

 racemed flowers commonly bractless. 

 ■•= = TTiroat with scales or appendages conspicuou.'!. one before the base of each lube, 

 and closing or nearli/ closing the orifice. 



i: Corolla short salver-shaped or nearly wheel shaped ; stamens included. 



9. 0MPHAL0DE9. Corolla with tube shorter than the rounded lobe.s. Nutlets smooth, 



depressed, and with a hollow basket-like top. Flowers loosely racemed ; no bracts. 

 Low, smooth or smoothisli herbs. 



ji i; Corolla tubular and more or less funnel-shaped. 



10. SYMPHYTUM. Corolla straight, tnbular-fnnnel-form, with short spreading lobes 



which are somewhat longer than the large awl-shaped scales and the Unear or lance- 

 olate anthers. Style slender, commonly protruding. Nutlets erect, smooth, coria- 

 ceous, fixed by a hollowed base. Coarse herbs, branching and leafy, with thickened 

 or tuberous roots, the juice mucilaginous and bitterish, used in popular medicine. 

 Flowers nodding in raceino-like often forked clusters, either naked or Icafy-bracted 



* * Corolla or stamens {or both) irregular. 



11. LYCOPSIS. Corolla with a curved tube, .slightly oblique 5-lobed border, and bristly- 



hairy scales in the throat. Stamens included in the tube. Nutlets rough-wrinkled, 

 erect, fixed by a hollowed base. Coarse, rough-bristly plants. 



12. ECIIIUM. Corolla irregular, two of the spreading lobes of the corolla shorter than the 



others, funnel-form, naked in the throat. Stamens unequal, ascending, more or 

 loss protruding ; filaments and style long and slender. Stigmas 2. Nutlets erect, 

 leathery, nuigli-wrinkled. 



