Spermacoce.'] Lxx. rdbiace^ (hiern). 235 



2 pairs of spreading leaves ; bracteoles not numerous. Caljx-teeth 4, 

 subequal, glabrous, slender, as long as the ovary. Corolla-tube exceed- 

 ing the calyx- teeth. Ovary glabrous. 



Upper Guinea. Niger Expedition, at Nupe, in rocky places, very abundant, 

 Barter / 



3. S. Phyijeuma, Schweinf. mss. in Jierh. A stiff erect hispid- 

 hirsute annual, somewhat branched, nearly 2 feet high. Stem and 

 branches subterete below, obtusely 4-sided about the middle, subcom- 

 pressed towards the apex. Leaves linear-lanceolate or linear- apiculate, 

 wedge-shaped towards the base, sessile, scabrous above and on the 

 revolate margin, 1-|— 3-J by tV"3 ^^•' lateral veins inconspicuous ; 

 sheath short, with about 3-5 setas, the middle seta about ^-V in. long. 

 Flowers about ^ in. long, numerous, sessile, crowded in dense heads of 

 ■§-f in. diameter, terminal and in upper axils, based by 1-3 pairs of leaves 

 the stipules of which are not much dilated ; bracteoles subpaleaceons, 

 cleft, shorter than the calyx. Calyx-teeth 4, subequal, linear- subulate, 

 scabrid-ciliate, longer than the glabrous ovary. Corolla pale purple, 

 elongate-funnel-shaped ; tube rather longer than the calyx-teeth ; 

 throat bearded with short thick hairs. Anthers oblong, much exserted ; 

 filaments lung, puberulous. Style long, puberalous; stigma small, 

 capitate. 



xrile Xiand. Djurland, Schweinf urth ! 



4. S. compressa, Afzellus mss. in herb. ; non R. Br. A glabrous 

 erect simple or branched annual, 1-2 feet high. Stem and branches 

 subterete at the base, obtusely 4-sided above, more or less compressed, 

 Bulcate. Leaves linear or narrowly elliptical, acute, slightly scabrous, 

 l-|-4 in. long, narrowed towards the base except the floral ones, sessile ; 

 stipules with about 4 or more setae about as long as the sheath. Flowers 

 ^-^ in. long, several together, verticillate, in small terminal and axil- 

 lary heads, based by 1-2 or more pairs of spreading leaves ; bracteoles 

 wanting or small. Calyx-teeth 4, lanceolate-subulate, ciliolate or 

 scabrid, rather long in flower. Corolla-tube long, slender, twice ex- 

 ceeding the calyx-teeth. Anthers dark blue, exserted. Capsule 

 puberulous towards the apex. Style purplish ; stigma yellowish. 

 Fruit ^ in. long, glabrous, somewhat turbinate, tipped with the per- 

 sistent calyx-teeth of ^V in. 



Upper Guinea. Sierra Leone, (flowers quite Vfhite) Afzelitis ! Purdie/ Niger 

 Expedition, at Nupe (flowers pale lilac), Barter / 



5. S.? pilosa, DO. Prodr. iv. p. 553. Herbaceous. Stem and 

 branches 4-sided, pubescent towards the extremities, puberulous be- 

 low. Leaves ovate or ovate-lanceolate, pointed, shortly narrowed to 

 a subsessile base, scabrous above with depressed veins, hispidulons 

 beneath, -^-2 in. long. ; stipules with short truncate sheath and 3-5- 

 setulose setae of about ^ in. long. Flowers very small, verticillate, 

 many together ; clusters axillary and subterminal, exceeded by the 

 spreading floral leaves, sessile or (by exception) on short peduncles. 

 Calyx-teeth 4, ovate or lanceolate, subequal or not very unequal, 



