204 



443. ACHILLEA. 



25. nabilis. Pubescenti - villous. Stem 

 erect, terete. Lower L. tripinnatipartite ; upper 

 bipinnatipartite. Outline oval. Lobes some- 

 what distant, dentate, acute. Kachis with, many 

 short teeth. Cliatr acute, hyaline, p. 7, 8. 

 Dry hills, s. and m. Em\ 



b. L. without a distinct linear rachis, the inter- 

 vals being more or less cimeate and toothed. 



26. tanacetifolia. Erect, pubescent. L. 

 pinnatifid, incise, dentate : outline elliptic. 

 Chaff oblong, smooth, acute, p. 7, 8. 3fotm- 

 tain pastures, s. e. Sw. Carn. This seems to 

 be dentifera of DC. ; his tanacetifolia is pro- 

 bably a var. q/" Millefolium. 



27- tomentosa. Hirsuto-tomentose. L. 

 pinnate, multifid. Lobes setaceous, quite en- 

 tire. Pan. corymbose, crowded, many-flowered. 

 Chaff membranous, somewhat acute, with a few 

 cilise at top. p. 6, 7. Open dry. s. Eur. 



ii. Rays yellow. 



28. Ageratuua. Nearly smooth, herba- 

 ceous, erect. L. oblong, obtuse, serrate, atte- 

 nuate, fascicled. Pan. crowded. Phyll. mu- 

 cronate. Kays 3-5, somewhat differing in 

 shape, p. 7, 8. Open grassy, s. Fr. It. 



Hot well known. 



29. decipiens. L. smooth. Root-L. some- 

 what tripinnate : pinnules linear, acuminate, 

 mucronate, few, spreading. Stem-L. bipinnate: 

 uppermost pectinate, with veiy narrow seg- 

 ments. Rays much shorter than the oblong 

 calyx, p. Styria, not ^infrequent. Allied to 

 A. magna, i. e., to K, tanacetifolia. — DC. 



444. PYRETHRUM. 



A.. Flowers all white. 



1 . naacrophylltim. Stem er6ct, somewhat 

 villous. L. somewhat hairy, nearly sessile, 

 pinnatipartite, broadly lanceolate, coarsely den- 

 tate, decurrent on the dentate rachis. Corymb 

 compound. Cal. nearly globose. Rays 5, 6, 

 flat, obovate, tridentate. Crest (pappus) very 

 short, entire, p. 6, 7. Woody hills. Gorganz- 

 Wald, Camiola. ''Habit o/" Achillea macro- 

 phylla." 



2. PartlienTOUi. Smooth. Stem erect, 

 branched, striate. L. stalked, pinnate. Lts. 

 pinnatifid, dentate : up2)ermost confluent. El. 

 corymbose. Phyll. oblong, albido-membranous 

 on margin, eroso-ciliate at top, obtuse. Rays 

 twice calyx. Crest short, dentate, p. 6, 7- 

 Walls and uncult. 



3. coryjnbosum. Nearly smooth. Stem 



erect, angular, branched at top. L. pinnate, 

 Lts. lanceolate, pinnatifid. Lobes acute, acutely 

 serrate : upper confluent. El. corymbose. Phyll. 

 ovato-lanceolate. Margin fusco-scariose. p. 

 6, 7. Woody hills. 



4. Acliiiless. Nearly smooth. Stem erect, 

 angular, branched at top. L. pinnate. Lts. 

 somewhat distant, almost pinnatipartite. Lobes 

 liueari-lanceolate, acute, acutely subdentate. 

 El. corymbose. Phyll. linear, oblong. Margin 

 pale, fusco-scariose. p. Woody hills. Sarzana. 

 Pisa. Nap. 



5. Rays white or pinkish. Disc yellow. 



5. inodoruiKi. L. sessile, bipinnatipartite. 

 Segm. capillary. Branches naked at top, 1- 

 flowered. Er. with 3 prominent, smooth ribs. 

 Inter-ribs rugose ; one of them broad and 

 two narrow. Two rounded depressions just 

 below the elevated, entire border, a. 7, 8. 

 Fields. — Bab. 



6. maritimum. Smooth. L. bipinnati- 

 partite. Lobes linear, fleshy, convex above. 

 Branches naked at top, 1-flowered. Er. with 

 3 prominent, smooth ribs. Outer Inter-rib 

 broad and rugose ; inner reduced to mere lines. 

 Two elongated Spots just below the lobed bor- 

 der, p. 7, 8. Shores. Eng. w. Er. — Bab. 



7. ceratophylloides. "Smooth. Stem 

 erect, leafy at base, naked at top, nearly simple. 

 L. pinnatilobed. Lobes lanceolate or linear, 

 acuminate. El. solitary. Phyll. oblong. Margin 

 brown, eroso-dentate. Crest obliquely incise, 

 crenate. p. Mountains. Pdm. Abr. Pyr." — DC. 



8. alpinum. Tufted, smooth. Stems 1- 

 flowered. Lower L. stalked, pectinato-pinnatifid. 

 Lobes approximate, quite entire, linear, acute. 

 Uppermost L. linear, entire. Leafy part of 

 Phyll. obtuse, p. 7, 8. Very high rocks. Alps. 

 rare in Pyr. 



/8. pubescens. Pubescent, or somewhat vil- 

 lous. Phyll. ciliate. Sw. and Dan. rare. 

 e. Pyi-. freq. 



9. tosnentosum. Tomentose, tufted, de- 

 cumbent. L. crowded on short stalks, 3-5- 

 partite. Lobes oblong, quite entire. StaUss 

 shortly exsert, naked, 1-flowered. Outer Phyll. 

 ovate and somewhat acute, p. Very high. 

 Monte Rotondo, Cors. 



10. £i!alleri. Tufted, smooth. Lower L. 

 staDved, cuneiform, inciso-dentate ; upper lan- 

 ceolate, inciso-serrate. Stem naked at top, 1- 

 flowered. Crown of Seeds of Ligulate Fits. 

 nearly as long as tube of floret, p. ?, 8. Gra- 



