302 BOEAGE FAMILY. 



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

 tipped prickles, forming small burs. Coarse weeds, with leafy-bracted racemed 

 flowers. 



- + Nutlets unarmed (sometimes slightly roughened). 



H- Corolla wheel-shaped, with no tube at all. 



4. BORAQ-0. 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 cartilaginous projection behind the linear 

 pointed anther. Nutlets erect. 



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

 for here.) 



H--H- Corolla tubular, funnel form, or salver-shaped, sometimes almost wheel-shaped. 



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



H Fruit fleshy, smooth or wrinkled. 



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 filaments protruding. Smooth plants, which is rare in this erder. 



J || Fruit (or nutlets') hard, often stone-like. 



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



perfectly naked, bearing the arrow-shaped or linear and mucronate anthers; fila- 

 ments hardly any. Style very slender and protruding. Nutlets stony, smooth, fixed 

 by their base. Very rough-bristly homely plants. 



7. LITHOSPEEMUM. Corolla funnel-form or salver-shaped, with 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. MYOSOTIS. 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. 



= Throat with scales or appendages conspicuous, one before the base of each lobe, 

 and closing or nearly closing the orifice. 



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



9. OMPHALODES. Corolla with tube shorter than the rounded lobes. Nutlets smooth, 



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

 Low, smooth or smoothish herbs. 



1 1 Corolla tubular and more or less funnel-shaped. 



10. SYMPHYTUM. Corolla straight, tubular-funnel-form, with short spreading lobes 



which are somewhat longer than the large awl-shaped scales and the linear 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 raceme-like often forked clusters, either naked or leafy-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. ECHIUM. 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 

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

 leathery, rough-wrinkled. 



