306 CONVOLVULUS FAMILY. 



11. LYCOPSIS, BUGLOSS. (Greek: wolf and face.) European 

 weed. 



L. arySnsis, Linn. Field or Smai,l Bugloss. Very rough-bristly 

 weed, about 1° high, in sandy fields E. ; with lance-oblong leaves, and 

 small blue corolla little exceeding the calyx. 



12. ECHIUM, VIPER'S BUGLOSS. (Greek word for ■yiper.) ® 



£. vulgare, Linn. Common V. or Blueweed. Cult, from Eu., in old 

 gardens, and a weed in fields, E.; l°-2° high, very rougli-bristly, with 

 lanceolate sessile leaves, and showy flowers in racemed clusters, the 

 purple corolla changing to bright blue, in summer. 



Lxxix. convolvulacej:, convolvulus family. 



Twining, trailing, or rarely erect plants (ours herbs), com- 

 monly with some milky juice, alternate leaves, no stipules ; 

 regular monopetalous flowers with 5 (rarely 4) imbricated 

 sepals, as many separate stamens, corolla convolute or twisted 

 in the bud, a 2-4-celled ovary (or 1-celled and ovaries several 

 or many in Nolana) and pod with only 1 or 2 ovules erect 

 from the base of each cell, becoming large seeds, containing 

 a curved or coiled conspicuous embryo in some mucilaginous 

 (or, when dry, harder) albumen. 



L CONVOLVULUS SUBFAMILY proper; with or- 

 dinary foliage, axillary peduncles bearing one or more usually 

 showy flowers, and embryo with broad leaf-like cotyledons 

 folded and crumpled in the seedo (Lessons, Fig. 40-43.) 

 Calyx of 5 separate sepals. 



• style single and entire ; stigmas 1-8. 



1. IPOMCEA. Caljrx naked, i.e. not Inclosed by a pair of leafy bracts. Corolla nearly 



salver-shaped or trumpet-shaped, with a long tube, the border not twisted In the bud. 

 stamens and style included or protruded. Stigma capitate, 2-^-lobed. Pod 2-4- 

 celled ; cells l-seeded. (Lessons, Figs. 260, 251.) 



2. CONVOLVULUS. Calyx naked or surrounded and Inclosed by a pair of large, leafy 



heart-shaped bracts. Corolla open funnel-form or almost bell-shaped. Stamens in- 

 clu<ied. Stigmas 2, linear. Pod 2-celled ; cells 2-seeded. 



3. NOLaNA. Calyx 5-cleft, foUaceous. Corolla short and of>en funnel-form, plaited In the 



bud. Stamens 5. Style 1 ; stigma capitate or club-shaped. Ovaries S-40 collected 

 In a circle or heap around the base of the style, becoming 1-4-celled drupelets or nut 

 lets, each cell l-seeded. 



• • Style 2-cleft or 2 separate styles, rarely 3. Spreading or trailing, not twining. 



4. BREWERIA. Like Convolvulus, but the styles 2 or sometimes 3, or in one specieu 



2-cleft, and stigmas capitate. Peduncles 1-7-flowered. 



5. EV0LVULU8. Corolla short and open funnel-form, or almost wheel-shaped. Style* 



^, each 2-cleft ; the 4 »tigma& obtuse. lod 2-celled ; cells 2-pe6ded. 



