Pluchea.'] LXXIII. COMPOSITiE (OLIVER AND hiern), 329 



acnte, lanceolate, thinly pubescent. Receptacle concave. Achenes 

 small, scattered with minute setas. — Laggera sordida^ Vatke in Oesterr. 

 Bot. Zeitschrift, 1875, p. 325. 



XMCozamb. X>istr. I. Zanzibar, Hildcbrandt ! 



4. P. Dioscoridis, BG. Frodr. 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 1^-1 in. wide, membranous. Capitula campanulate or ovoid, 

 ^-^ 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 ; (juter 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 DioscoridiSf L. ; Gonyza Dioscoridis, Rauw. ; 

 Baccharis cegyptiaca, Forsk. ; 0. haccharoides, Schultz Bip. in Hb. 

 Schimp. Abyss, sect i. n. 146 ; Blumea haccharoides^ Sch. Bip. in Hb. 

 Schimp. Abyss, sect. ii. n. 1018 ; Gonyza modatensisy Schultz Bip. 

 in Schweinf. Fl. ^thiop. p. 144. 



irile Ijand. Abyssinia, Schi'mperf Hildcbrandt ! (P. Kraussn. Sch. Bip. varr. vws- 

 samhiquensis and glaherrima, Steetz in Peters Mossamb. Bot. -143) ; Cordofan, Kotschy ! 



Lower Guinea. Congo, Chr. Smith! Angola; Loanda and Ambriz, Montciro I 

 Loango, Soyeaux! 



ivzoxamb. Bistr. Kanyenye, 6° 24' S. lat,, Spckeand Grant! (lilac-flowering); 

 Zanzibar 1., Hildcbrandt ! (flowers lilac); Rovuma River, 16-26 miles up, Dr. 

 Kirk .' Dr. Mellcr ! Banks of Luabo, 18 miles from sea ; xsiT. glabra, {C. Kraussii, Sch. 

 Bip. in Walp. Repert. ii. 972), glabrous), shining ; leaves narrow; capitula oblong, Dr. 

 Kirk ! Cabacoira 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. Schweiufarth in the Great Oasis. 



5. P. lanceolata, 0. ^ H. Small shrub, 1-3 ft. high or more, 

 erect, branched, covered with soft short whitish close appressed pubes- 

 cence. Leaves oval-oblong, mucronate, narrowed at the base, coriace- 

 ous, entire or (in Indian specimens) acutely serrulate, sessile, about 

 1^ in. long by f in. wide. Capitula ovoid or campanulate, about j- in. 

 wide, many-flowered, on short pedicels or eubsessile, in dense t-erminal 

 tomentose 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 ; sotffi compla- 

 nate, confluent into a sheath below. — Berthelotea lanceolaia, DC. Prodr. 

 V. p. 367 ; Delessert, Icon. Select. Plant, iv. t. 21. 



Upper Guinea. Senegambia, Perrottet ! 

 Occurs also in N. W, India. 



