Pulicaria.'] Lxxiii. composite (oliver and hiern). 367 



many-flowered, solitary at the ends of the paniculate branches, radiate. 

 Scales of the involucre pluriseriate, thinly woolly or glandular, linear, 

 acute ; outer shorter, recurved at the tips. Disk fl. 4-5-dentate. Re- 

 ceptacle punctate, ^— ^ in. diameter. Achenes glabrous. Pappus sub- 

 1-seriate with a few shorter setae, subplumosely scabrid above. — 

 Francoeuria cnsj)a, Cass. ; DC. Prodr. v. p. 475. 



Vpper Guinea. Senegambia, Boger ! Dagana, Leprieur. Niger, Barter ! 

 xrUe Xiand. Cordofan, Kotschy! Nubia, Hartman! Binder ; Nile bank, 16° N. 

 Lat., Sjpeke and Grant! Abyssinia, Roth! 



Also in Cape Verde Islands, Arabia, Egypt, India, &c. 



48. PORPHYROSTEMMA, Grant ; Benth. et Hook, f . Gen. 

 PI. ii. p. 336. 



Capitula heterogamous discoid.; outer florets $ oo- seriate narrowly 

 tubular; inner ^ tubular dilated upwards 5-toothed. Involucre 

 hemispherical of numerous narrow linear or subulate bracts, the outer 

 shorter. Receptacle foveolate hairy. Anther-base sagittate, contigu- 

 ous auricles connate. Style -branches linear obtuse. Achenes hairy. 

 Pappus of 5 rather long setae, together with minute uniseriate laciniate 

 scales. — Erect hispid herb with narrow alternate leaves and rather 

 large pedunculate loosely panicled purple heads. 

 A monotypic endemic genus. 



1. P. Grantii, Benth. ; Oliv. in Linn. Trans, xxix. p. 96, t. 

 63. Erect herb, about 2 ft. high; stem corymbosely branched 

 upwards ; branches striate, hispid. Leaves linear or narrowly linear- 

 elliptical, obtusely pointed, raucronate, thinly hispid, denticulate, nar- 

 rowed towards the slightly clasping sessile base, 2-5 in. long by ^f in. 

 wide. Capitula hemispherical, | in. diameter, solitary, on distinct 

 ped incles, terminal and subterminal, purple. Scales of the involucre 

 linear- subulate shaggy. Achenes densely hirsute-pilose with ascending 

 hairs. — Eriyerun ?? sp.. Thorns, in Speke Joum. App. p. 637. 



Wile Xiand. 4° 15' S. Lat., near Mininga, in moist places, Speke and Grant! 

 salt is extracted from its ashes. 



49. GEIGERIA, Griessel. ; Benth. et Hook. f. Gen. PI. ii. p. 337. 



Heads heterogamous radiate, overtopped by the leaves ; ray- florets 

 1 -seriate. Involucre ovoid or campanulate of multiseriate rigid imbri- 

 cate bracts. Paleae of receptacle very numerous narrow or setaceous. 

 Ray-florets lignlate, 3-dentate ; disk-florets tubular 5-Kd. Anther- 

 base sagittate with slender tails. Achenes angled, hairy. Pappus 

 usually of 2-seriate scales, the inner or alternate aristate. — Low herbs, 

 with opposite or alternate glandular or cottony leaves and yellow heads 

 often concealed amongst the leaves. 



A genus chiefly confined to the Cape. 

 Dichotomous alate herb. Leaves oval, glabrate-glandular. 



Heads sessile in the forks 1. G. olata. 



Low cottony herb. Leaves narrow. Heads densely lomentose . 2. G. acaiUis. 



