16Q 



589. YERBASCUM. 



6. viminale. Tomentiun somewhat floc- 

 cose aud deciduous. Div. of Cal. acute, at 

 last smootli. Rac. somewhat lax at base. 

 Hairs of Pil. whitish. Root-L. oblong, at- 

 tenuate, green above. Wings obtuse, b. 5, 

 6. Shores. Stem so flexible that it is used 

 for lands in lapygia. 



7. densifloruxn. Wool yellow. Div. of 

 Cor. rounded, three times calyx. Rac. spike- 

 lite, somewhat inteniipted at base. Hairs of 

 Fil. whitish. L. ovate, nearly naked above : 

 lower oblongo-lanceolate, on short stalks, incise 

 at base ; upper descending in short, wedge- 

 like wings, b. 6-8. Slate quarries on the 

 top of the Brucciana. Query if distinct from 

 V. Bertolonii. 



8. longifolium. Tomentnm yellowish. 

 Cor. three times calyx. Divisions oblong, 

 obtuse. Rac. somewhat branched: the 

 lower Clusters spike-like. (Hairs of shorter 

 Kl. purplish at base, Guss.) Root-L. oblongo- 

 lanceolate, very long, rounded at base and 

 hardly decurrent. b. 7, 8. Blotmtain pas- 

 tures. L'mbria. 



iii. L. not decurrent. Anthers very decur- 

 rent. Flovjers yellow. Hairs of Filaments 

 purple. 



9. virgatum. Hairy and somewhat viscid. 

 Fl. axillary, sessile or on short stalks ; lower 

 clustered. Rac. long, nearly simple. L. ob- 

 longo-lanceolate. Root-L. somewhat lyrate. 

 Stem-L. sometimes slightly decurrent, un- 

 equally dentate, b. 7, 8. Eng. n. Er. It. 



10. Blattaria. Fl. solitary, on long stalks. 

 3 Stamens nearly alike. Div. of Cal. acute. 

 L. oblong. Root-L. stalked, sometimes sinu- 

 ato-pinnatifid. Stem-L. amplexicaul, rarely 

 somewhat decurrent. b. 6, 7. Moist gra- 

 velly, occ. 



11. repandTiin. Smooth, or wth a few 

 viscid haii-s. Pan. rod-like. El.-stalks soli- 

 tary. Upper Stamens very small. Div. of 

 Cal. obtuse. Lower L. oblong, stalked ; upper 

 small, cordate, amplexicaul. b. 7, 8. Clayey 

 uncult. Sic. 



B. Anthers all reniform, and nearly equal. 



i. TMcerne nearly simple. Stem and L. 

 covered with soft Tomentum. 



12. niveTLm. Wool very white. Stem 

 single. Caps, somewhat acute. Segm. of Cal. 

 ovate, acute. Cor. twice calyx. Wool of Eil. 

 w^hite. Rac. spike-like, veiy dense. L. ovato- 

 oblong ; upper acuminate, somewhat cochleate. 



wings cuneate. 

 bria. 



b. 5-7. Abruzzi and Um- 



13. bicolor. Wool white, loose. Stem 

 single. Rac. interrupted at base. Hairs of Eil. 

 purple. Lower L. elliptico-ovate, acute, some- 

 times pinnato-auriculate at base; upper am- 

 plexicaul. Caps, obtuse, b. 5-7. e. Ligiiria, 

 rare. 



14. Boerbavii. Wool white. Stem sin- 

 gle. El. sessile, generally in clusters. Hairs 

 of Eil. purple. Lower L. oblong or obovate ; 

 upper cordate, amplexicaul, acuminate. Caps, 

 obtuse, b. 5, 6. s. Er. s. It. 



15. conocarpum. Wool white. Stem 

 single. Caps, conical, acute, exceeding calyx. 

 Rac. lax. L. elliptico-ovate or oblong, nearly 

 entire. Lower L. somewhat obtuse ; upper 

 acute, amplexicaul. b. 5-7- Marif. rocks. 

 Bosa, Sardinia. 



16. angustifolium. " Finely tomentose. 

 Stem single. Rac. crowded. El. generally 

 single. Hairs of Eil. white. L. lanceolate : 

 lower stalked, obtuse : upper amplexicaul, acu- 

 minate. Caps, acute, equalling calyx, b. 6. 

 Sandy shores. Cal." — Bert. 



17. simples. Stems many, from a woody 

 root. Rac. simple, interrupted. El. clustered, 

 nearly sessile. Hairs of Fil. white. L. ovate 

 or oblong ; upper sessile, amplexicaul. (■w. 

 Benth.) (b. Bert.) 5, 6. Monte Gargano. 

 Calabria. 



ii. Raceme panicled. 



a. Flowers nearly sessile. Stem and L. woolly. 



18. mucronatum. Very white. Pan. 

 with long divaricate branches. Fl. in remote, 

 globose clusters. Root-L. thick, broad, oblong, 

 crenate or somewhat sinuate ; upper cordate, 

 amplexicaul, decmTcnt. Port Juvenal. Seeds 

 brought with the wool. 



19. sinwatum. Yellowish. Pan. pyi'a- 

 midal. Clusters lax, remote, many-flowered. 

 Root-L. oblong, sinuato-pinnatifid, somewhat 

 undulate; upper cordate, amplexicaul, sub- 

 decurrent. b. 6-9. Dry. s. Fr. It. Istr. 



b. Flower-stalks at least as long as calyx. 

 Stem and L. woolly. 



* Hairs of Filaments white. 



20. speciosujM.. Tomentum somewhat 

 floccose on both sides of L. Branches of Pan. 

 very long. Clusters generally many -flowered. 

 Caps, ovoideo-oblong. Root-L. thick, long 

 oblong, attenuate into stalk ; upper sessile. 



