Matricaria. — Artemisia. 1011 
1399. (3.) Matricaria auriculata (Boiss.) Muschler comb. nov. 
— Chamaemelum auriculatum Boiss. Diagnos. Plant. Orient., ser. I 
fasc. 11 p.23. — Aschers.-Schweinf. Ill. Flor. d’Eg., Supplem. p. 761. 
— Aschers. Flor. Rhinocol., p.798 no.147. — Pyrethrum auriculatum 
Boiss. exsicc. — An annual plant, 10—20 cm high or sometimes 
somewhat more, glabrescent; stems 1-headed, scape-like. Leaves 
pinnatisect into linear, entire or pinnate-lobuled segments. . Heads 
8 mm broad; scales of the involucre ovate-oblong, scarious-margined ; 
receptacle ovate; achenes small, inner face thick-ribbed and deeply 
furrowed; auricle oblong, translucent, as long as the achenes or longer. 
— Flow. March to April. 
D. i. Wady-el-“Arish. 
Also known from Arabia Petraea and Palestine. 
1400. (4.) Matricaria tridentata (Del.) O. Hofim. in Engler- 
Prantl Natuerl. Planzenfam. IV, fase. 5 (1894), p. 277. — Chlamydo- 
phora tridentata Ehrenberg in Less. Synops. Compos., p. 255. — Boiss. 
Flor. Or. III, p. 359. — Aschers.-Schweinf. Ill. Flor. d’Eg., p. 91 no. 575. 
Aschers.-Schweinf. Primit. Flor. Marmaric., p.654 no. 173. — Balsamita 
tridentata Del. Ill. Flor. @Eg., p. 25 tab. 47. — Tanacetum uliginosum 
Sibth. and Smith Prodrom. Flor. graec., p. 167. — Cotula coronopi- 
folia Kotschy Cyp., p. 240 not of Linn. — An annual, glabrous plant, 
10—20 cm high or sometimes somewhat more; branching from the 
base; branches simple and leafy, monocephalous. Leaves fleshy 
broad-linear, the lower ones opposite often tridentate at the tip, the 
upper ones alternate, gradually smaller, entire; capitula long-peduncled ; 
scales of the involucre unequal, obovate the inner enes broadly 
scarious-margined; achenes glabrous with a small crown. — Flow. 
March to April. 
M.ma. Marmarica: Matruga; Mariut; Montaza; Alexandria- West. 
Also known from Tunisia. 
584. (44.) Artemisia Linn. 
Capitula heterogamous, discoid; outer flowers pistillate, tubular. 
Involucre ovoid or campanulate, bracts panciseriate, subequal, imbri- 
cate. Receptacle naked or nearly so. Anther-base entire or 2-den- 
tate. Style-branches truncate or penicillate. Achenes narrowly 
ellipsoidal in our species; pappus 0. — Herbs or shrubs with 2 to 
3-pinnatisect (simply incised or entire) alternate leaves and small 
often pendulous capitula in racemose panicles. 
A large genus chiefly confined to the Northern hemisphere. 
64* 
