COMPOSITiE. 



213 



Sub-order III. DISCOIDEuiE. 



Tribe I. ARTEMISIEJE. 



466. COTULA. 



1. coronopifolia. L. sheathing at base, 

 lanceolato-linear, pinnatifido-dentate. Stem 

 procumbent. Branches 1 -flowered, a. 7, 8. 

 Sea-shore from Embden to Holstein. 



467. ARTEMISIA. 



A. Florets aU complete. Receptacle naked. 

 Sp. 1-4. 



B. Outer Elorets without anthers. Recep- 

 tacle naked. 



i. L. -stalk auricled. 



a. Mower subglobose, hairless. Sp. 5-11. 



b. Elower subglobose, hoary. Sp. 12-14. 



c. Elower oblong. Sp. 15. 



ii. L.-stallc without auricles. Sp. 16-21. 



C. Outer Fits, without anthers. Recep- 

 tacle hairy. 



i. CoroUa hairy. Sp. 22, 23. 



ii. Corolla without haii's. Sp. 24-30. 



A. Florets all complete. ILeceptacle naked. 



1. caerulesceus. L. of the barren staEis 

 incise and pinnatifid ; others lanceolate and 

 undivided. Fl. oblong. Fits, about 3. S. 

 8, 9. Marshy shores. Adr. 



3. densiflora. L. pinnate, on long, rigid 

 staUiS ; those on mid-stem am-icled. Primary 

 Div. entii'e in the lower part. Floral L. trifid 

 or entire. Segm. of all linear, obtuse. Fl. 

 oblongo-tm'binate. s.S. Cors. — Viv. 



3. narbonensis, J. W. L. pinnate, di- 

 vided in theii- whole length. Segm. short, 

 rounded. Floral L. trifid. Fl. ovali-oblong. 

 s.S. 7, 8. Salt marshes. Narbonue. 



4. maritima. L. decompound. Primary 

 Segm. divided almost from base. Div. lanceo- 

 late. s.S. 8, 9. 



o. Branches deflexed. Salt marshes. 



fi. salina. Branches erect. Fl. cernuous. 



Salt spnnr/s. G. 

 7. gallica. Branches erect, numerous, fall- ' 



ing far short of central raceme. Fl. erect. 



Salt marshes. 



5. vallesiaca. Branches erect, few, all nearly 

 equal. Fl. erect. Vallais. 



I cannot persuade myself that all the forms 

 called A. maritima belong to one species. Be- 

 sides the erect, recurved, or deflexed branches. 



they vary in the ovoid (rather obovoid) or al- 

 most globular florets, which are stalked or ses- 

 sile, clustered or solitary, erect or cernuous. 

 The floral L. are entu-e or trifid, exceeding or 

 falling short of the flower. The L. are bi- or 

 even tri-ternate or pinnate : the pinnte sessile 

 or stallced, piunate or palmato-multifid. The ul- 

 timate segments are, I believe, always linear 

 and obtuse. The stem or branches of the plant 

 sometimes end in a long spike or raceme, and 

 sometimes are divided into a panicle. The 

 outline of the L. is sometimes oblong, and 

 sometimes reniform. 



3. Outer Florets without anthers. Recep- 

 tacle naked. 



i. An Auricle at the base of L.-stalk about 

 the middle of the Jlowerinc/stem. 



a. Flower broadly ovoid or subglobose, 

 hairless. 



5. variabilis. Shrubby. Lower L. bipin- 

 nate. Middle L. tripartite : the middle seg- 

 ment pinnate, with distant Lts. Ultimate 

 Segm. and floral L. long, fiUfomi, spreading. 

 s.S. 8, 9. Opjen dry. K. Nap. Sic. 



;8. saligna. Hoary at base. Segm. of L. 

 shorter. 



6. campestris. Woody at base. Ban-en 

 Stems tufted. Lower L. bipinnate; middle 

 with 5-7 nearly equal, linear, mucronate seg- 

 ments. Middle Segm. pinnate. Fl. small. s.S. 

 or p. 7, 8. Barren. Fi-. G. Sw. 



;8. nana. 3-6 inches high. Segm, of L. 

 lineari-lanceolate. (L. 2-3-pianatifid ; the 

 outUne subrotundo-ovate. Segm. linear, 

 mucronate. — Koch.) 



The divisions of the L. are exceedingly va- 

 rious, but the segments are always capillary 

 and acute. A. Abrotauum and A. camphorata 

 have similar L. ; but the first has a fully he- 

 mispherical FL, while A.'campestris has usually 

 only 3-5 Fits., and hardly, therefore, a disc 

 and circumference. The Fl. are in racemes, 

 generally secund and somewhat ovoid, but 

 sometimes nearly globular. A. camphorata 

 has a hairy receptacle. 



7. paniculata. Shrubby. L. bipinnat?: 

 those of branches pinnate at top. Segm. and 

 floral L. linear, short and straight. Bracts 

 tUed, fleshy, obtuse. s.S. It. s. Fr. Ac- 

 cording to Guss., the Fl. is oblong. 



8. glutinosa. Shi'ubby, viscid, especially 

 at top. Lower L. bipinnate ; middle 7-cleft. 

 Auricle 3-cleft. Middle Segm. pinnato-tii- 

 sect or undivided. Ultimate Segm. and floral 



