Tab. 7886. 

 CHRYSANTHEMUM geandb. 



Native of Algeria. 



Nat. Ord. Composite. — Tribe Anthemide*. 

 Genus Chrysanthemum, Linn. ; {Benth. & HooJc.f. Gen. Plant, vol. ii. p. 424.) 



Chrysanthemum (Plagius) grande ; herba 2-3-pedalis, perennis, erecta, robusta, 

 foliosa, hispido-pilosa v. glabrescens, caule subsimplici, foliis 6-8 polli- 

 caribus radicalibus longe petiolatis caulinis sessilibus lyratis lineari- 

 oblongis-obovatisve obtnsis repando-crenatis inferioribus basi longe angus- 

 tatis et in petiolum alatum remote dentatum basi late auriculatum pro- 

 ductis, auriculis profnnde pinnatifidim dentatis dentibus incurvis acutis, 

 capitulia terminalibus solitariis If— 2^ poll, latis valde depressis disci- 

 formibus homo^arnis, pedunculo valido elongato foliis parvis deformatis 

 instructo, involucri crateriformis bracteis numerosissimis 3-seriatis appresis 

 £ poll. Ion gis subulato-lanceolatis extimis herbaceis intimis apice mem- 

 branaceis brunneis, receptaculo lato piano granulato, flosculis innumeris 

 (radii 0) dense compactis bracteia sequilongis aureis, corolla tubuloso- 

 campanulata 5-fida lobis ovatis acutis sparse tuberoulatis, achasniis crasse 

 stipitatis subcylindraceis lente curvis fulcatis basi oblique truncatis 

 apice in squamam unguiformem unilateralem coriaceam concavam corolla 

 ter breviorem persistentem producto. 



C. grande, HooJc.f. 



C. grandiflorum, Battand. Flore d' Alger. 1890, p. 464, non Willd. 



Plagius graudiflorus, L'Her. ex DC. Prodr. vol. vi. p. 135. Munhy, Cat. PI. 

 Alger. Ed. 2 (1866), p. 19. 



Balsamita grandiflora, Desf. in Act. Soc. Hist. Nat. Par. vol. i. (1792) p. 1; 

 Fl. Atlant. vol. ii. p. 262. Willd. Sp. PI. vol. iii. p. 1800. 



Matricaria grandis, Desrouss. in Lam. Encycl. vol. iii. p. 738. 



Tanacetum grandiflorum, Poir. Encycl. vol. vii. p. 574. 



Cotula grandis, Linn. Sp. PI. Ed. II. p. 1257. 



The specific name of grandiflorum adopted for this plant 

 by Battandier and Trabut, being preoccupied by Willdenow 

 for the Canarian congener, I have replaced it by that of 

 grande, under which, as Cotula grandis, it was first 

 described by Linnaeus. It is confined to Algiers, where it 

 is not uncommon in the Mitidja range, and in the Tell (the 

 cultivated districts between that range and the sea), 

 growing on roadsides and amongst brushwood. The 

 genus Plagius, Desf., to which, as a section, it is referable, 

 is founded on the absence of ray-flowers, a very exceptional 

 character in the genus Chrysanthemum, there being only 

 March 1st, 1903. 



