Pluchea. | LXXIUI. COMPOSITE (OLIVER AND HIERN). 329 
acute, lanceolate, thinly pubescent. Receptacle concave. Achenes 
small, scattered with minute setee.—Laggera sordida, Vatke in Oesterr. 
Bot. Zeitschrift, 1875, p. 325. 
Mozamb. Distr. I. Zanzibar, Hildebrandt ! 
4. P. Dioscoridis, DC. Prodr. v. 450. Fruticose, varying to 6 ft. 
or more in height. Branches terete, striate, more or less puberulous or 
pubescent towards the extremities, rarely glabrous. Leaves oval- 
oblong, narrowly elliptical or linear-lanceolate, acute or subacute, nar- 
rowed towards the sessile or shortly petiolate often auriculate-cordate 
base, serrate denticulate or subentire, puberulous or glabrous, 1-2 in. 
long by 4-1 in. wide, membranous. Capitula campanulate or ovoid, 
4 in. wide, pedicelled or usually sessile, few together in stalked 
clusters, collected in ample much-branched corymbose or globose ter- 
minal panicles. Scales of involucre pluriseriate ; inner linear or linear- 
lanceolate, acute or apiculate, sometimes fimbriate-dentate, glabrous or 
nearly so, caducous; outer shorter, ovate, puberulous or pubescent, 
acute or obtuse and apiculate, persistent. Receptacle narrow, naked. 
Achenes glabrous or nearly so, 4—7-costate, angles paler. Pappus uni- 
seriate, sordid.— Baccharis Dioscoridis, L. ; Conyza -Dioscoridis, Rauw. ; 
Baccharis egyptiaca, Forsk.; C. baccharoides, Schultz Bip. in Hb. 
Schimp, Abyss. sect i. n. 146; Blwmea baccharoides, Sch. Bip. in Hb. 
Schimp. Abyss. sect. ii. n. 1018; Oonyza modatensis, Schultz Bip. 
in Schweinf. F], Aathiop. p. 144. 
Nile Land. Abyssinia, Schimper ! Hildebrandt ! (P. Kraussit. Sch. Bip. varr. mos- 
sambiquensis and glaberrima, Steetz in Peters Mossamb. Bot. 443) ; Cordotan, Kotschy ! 
Lower Guinea. Congo, Chr. Smith! Angola; Loanda and Ambriz, Monteiro ! 
Loango, Soyeaua ! . . 
= Mozamb. Distr. Kanyenye, 6° 24'S. lat., Speke and Grant ! (lilac-flowering) ; 
Zanzibar I., Hildebrandt ! (flowers lilac); Rovuma River, 16-26 miles up, Dr 
Kirk ! Dr. Meller ! Banks of Luabo, 18 miles from sea ; var. glabra, (C. Kraussii, Sch. 
Bip. in Walp. Repert. ii. 972), glabrous, shining ; leaves narrow ; capitula oblong, Dr. 
Kirk! Cabaceira and Inhambane, Dr. Peters ! 
Occurs also in Natal, Egypt, Arabia, Palestine. _ 
A remarkably luxuriant form with larger heads and leaves attaining 2-3 by 
1}-2 in, was collected by Dr. Schweinfurth in the Great Oasis. . 
5. B. lanceolata, 0. §- H. Small shrub, 1-3 ft. high or more, 
‘rect, branched, covered with soft short whitish close appressed pubes- 
fence. Leaves oval-oblong, mucronate, narrowed at the base, coriace- 
7% entire or (in Indian specimens) acutely serrulate, sessile, about 
2 In. long by 2 in. wide. Capitula ovoid or campanulate, about + in. 
wide, many-flowered, on short pedicels or subsessile, in dense terminal 
mentose or pubescent corymbs. Flowers pink. Scales of involucre 
Pluriseriate, imbricated, appressed ; outer broadly ovate, short, obtuse ; 
innermost linear, acute, scarious. Receptacle flat, naked. Achenes 
glabrous. Pappus of sterile flowers uniseriate, sordid; sete compla- 
hate, confluent intoa sheath below.—Berthelotea lanceolata, DC. Prodr. 
Vv. p. 367; Delessert, Icon. Select. Plant. iv. t. 21. 
Upper Guinea, Senegambia, Perrottet ! 
Ceurs also in N, W. India. 
