COMPOSITvE. 



i9y 



field cultivation iu Germany : n. annutis, the 

 common sunflower, which is cultivated for the 

 oil ohtained from the seeds, and H. iuherosus, 

 the Jerusalem artichoke. 



Tribe III. GALINSOGEM 

 439. BIDBNS. 



1. bipinnata. Seeds linear, smooth, twice 

 as long as calyx. L. Lipinuate. Lts. incise. 

 a. 7-9. Margins, s. Tyr. Mtp. 



2. tripartita. Seeds obovate, with back- 

 ward pricldes. Bristles 2 or 3. Outer L. 

 tripartite : divisions lanceolate, serrate, a. 

 7-9. Wet. 



3. cernua. Seeds cmieate, with 4 bristles 

 armed with backward prickles. L. undivided, 

 lanceolate, serrate, somewhat connate, a. 8, 

 9. Wet. 



i8. M. radiate. Coreopsis Bidens, Linn. 



4. bullata. Seeds obovate, with forward 

 prickles at base and backward at top. Bristles 2. 

 L. broad ovate, coarsely toothed, rough, some- 

 times with two smaU. lateral lobes, a. 8, 9. 

 Wet. Padua. VerceUi. 



440. GALINSOGA. 



1. parviflora. Nearly smooth. Recept. 

 conical. Pales of Crest 8-16. p. 7, 8. 

 Sandy cult. Carlsrube. n. G. occ. 



Tribe IV. ANTEEMIBEM 

 441. ANTHEMIS. 



I have been unable to do better than to fol- 

 low De Candolle in this genus, though much 

 dissatisfied with his characters, and unable 

 from them to make an analysis of the genus. 

 His divisions are — 



A. Seeds quite bald. 



i. Rays white. Sp. 1-6. 

 ii. Rays very short. Sp. 7. 



B. Seeds vrith a short crown. Sp. 8-22. 



To which I add — 



C. Rays neuter. Tube of Florets winged, 

 but without any spm\ {Manita and Lyo- 

 nettia, DC.) Sp. 23-25. 



D. Rays barren. Tube with a spur at the 

 base. {Orminis, DC.) Sp. 26. 



E. Florets of the Disc white ! Sp. 27. 

 Koch mentions a narrow wdng to the seeds 



of many species where it is not noticed by DC. 

 I have added his distinguishing characters of 

 the species of the Fl. Ger. 



The following aberrations from the character 

 of the divisions of DC. occur in the species. 

 The seeds of A. Chamomilla are " vix ac ne 

 vix coronata" DC. In A. incrassala the cal- 

 lous margin seems to correspond with the wing 

 of Koch. The sides of the seed are continued, 

 to form an acute-edged cup, J. W. In Sp. 5, 

 the seed is crowned with a very short-toothed 

 margin, DC. In Sp. 8, the seed is not crowned, 

 Speengel. In Sp. 10, the crown is dimidiate 

 or sometimes wanting, DC. In Sp. 11, the 

 seeds are "fere truncata" DC. In Sp. 14, 

 they are " vix ac ne vix suhmarginata, potius 

 omnino calva," DC. In Sp. 3, 5, 6, 19, 23, and 

 25, the receptacle is a prolonged cone : in the 

 other species it is convex, or at most hemisphe- 

 rical. 



A. Seeds quite bald. 

 i. Rays white. 



1. Chamomilla. Stem much divided and 

 shrubby at base. Flowering-branches villous, 

 1 -flowered, somewhat exceeding L. Lower- 

 most L. stalked, pinnate. Div. pinnatifid. Seg- 

 ments acute, with 3-5 lobes. Upper L. pin- 

 natifid; uppermost undivided. PhyU. pubes- 

 cent at back, membranous on margin. Recept. 

 convex. ChaS' acuminate. Rays often neutral. 

 p. Fields. Naples, abundant. 



2. incrassata. Stem branched, spreading. 

 L. pinnatifid. Lower Lobes entire, acute; 

 upper longer, pinnatifid. Stalks at lengih 

 thicker at the top. Chaff acuminate, almost 

 longer than florets. Seeds 4-edged, fui'rowed : 

 summit umbilicate : margin callous, a. 7- 

 Slwres of Mdt. 



3. clavata. " Downy, perennial. L. bi- 

 pinnatifid. Segments short, flat, somewhat 

 squarrose, with a callous point. Fl.-stalks 

 long, naked, club-shaped, hoUow at top. Re- 

 cept. conical. Chaflf lanceolate, mucronate, 

 persistent. Seeds obtusely 4-edged, smooth, 

 whitish, crowned with a thin, crenulate margin. 

 p. 8-10. Mountain pastures. Madonie." — 

 Guss. 



4. spbacelata. Stem herbaceous, ascend- 

 ing. Fl.-stalks long, not thickened at top. L. 

 bipinnatifid : lobes Uneai-, acute, entii-e, with- 

 out dots. PhyU. with a dark margin : outer 



