164 SYNGENESIA POLYGAMIA SUPERFLUA. [CI. 19. 



SYNGENESIA POLYGAMIA SUPERFLUA. 



392. TANACETUM. Tansy. 

 1. T. vulgdre, 18. 1229. (Common T.) Leaves doubly pinnatifid, 



deeply serrated, naked. 

 Hilly past. & road-sides. If. 7, 8. Strong -scented, 1—2 /. Fl. yell. 



393. ARTEMISIA. Wormwood, Southernwood, and Mugwort. 



1. A. campestris, 5. 338. (Field S.) Leaves in many linear segments. 



Stems procumbent before flowering, wand -like. 

 Dry sandy sit. rare. 2f.8. Inodorous. L. narrow, green. Fl. yell. 



2. A. mur'itima, 24. 1706. (Sea W.) Leaves downy, pinnatifid; up- 



permost undivided. Flowers drooping, oblong, downy, sessile. 

 Receptacle naked. 

 Seashores. If . 8. Aromatic and bitter. L. hoary. Fl. ovate. 



3. K.gdllica, 24, 1706. (A. maritima, 14. 1001.) ( Upright Sea W.) 



Leaves downy, pinnatifid ; radical ones capillary ; uppermost 

 undivided. Flowers erect, oblong, downy, partly stalked, of few 

 florets. Receptacle naked. 

 Banks near the sea. 2f . 8. L. narrow. Fl. upright, more abundant. 



4. A. Absinthium, 18. 1230. (Common W.) Leaves in many deep 



segments, clothed with close silky down. Flowers drooping, 

 hemispherical. Receptacle hairy. 

 Waste gr. If • 8. Aromatic and intensely bitter ; bushy. 



5. A.vulgdris, 14.978. (Mugwort.) Leaves pinnatifid, flat, cut; downy 



beneath. Clusters simple. Flowers ovate. Receptacle naked. 

 Waste gr. about hedges. If. 8. L. dark green above. Stem 3 — 4f. 



6. A. ccerulescens, 34. 2426. (Bluish M.) Leaves hoary ; most of 



them lanceolate, undivided, tapering at the base ; lower ones 

 variously divided. Flowers erect, cylindrical. Receptacle naked. 

 Sea coast : now extinct. If.. 8. L. of a bluish hoary hue. Fl. 

 small, erect. 



394. GNAPHaLIUM. Cudweed. 



* Calyx yellow. 



1. G. luteo-dlbum, 14. 1002. (Jersey C.J Herbaceous. Leaves half- 



clasping, linear-oblong, wavy, woolly on both sides ; lower ones 

 blunt. Flowers densely tufted. 

 Dry sandy gr. in the S. 0. 7, 8. Stem 3 — 12 in., spreading below. 



** Cal. white, or reddish. 



2. G. margaritdceum, 29. 2018. (American C. Pearly Everlasting.) 



Herbaceous. Leaves linear-lanceolate, sharp-pointed, alternate ; 



loosely cottony on the upper-side ; densely so underneath. Stem 



branched in the upper part. Panicles corymbose, level-topped. 



Mead., rare : introd. If. 8. 2f. Cal. of a pure, paper-like white. 



3. G. dioicum, 4. 2G7. (Mountain C.) Shoots procumbent. Stem 



unbranched. Corymb simple, terminal. Flowers dioecious. Seed- 



