218 cxvm. THYJOELiEACEiE (pearson). [Guidia. 



2. G. macrorrhizay Gilg in Engl. Jakrh. xix. 260. Flowering 

 stems very numerous, slender, erect, unbranched, glabrous, 4-7 in. 

 high, arising from a stout woody rhizome. Leaves wmote, oblong, 

 acute, somewhat narrowed towards the base, glabrous, about \ in. long, 

 2-3 lin. broad. Heads 15-20-flowered ; leafless peduncle ^l| in. long ; 

 involucral bracts 4-5, broadly ovate, acute, green, erect during flowering, 

 about f as long as the flowers, 2-3 lin. broad. Flowers 4-merous, 

 pedicelled ; pedicels bearing a brush of long erect hairs at the apex. 

 Oalyx-tube cylindric, slender, glabrous, 5 lin. long; lobes ovate, 

 glabrous, 2 lin. long, 1 lin. broad. Petals obovate, thickened and 

 •concave towards the apex, rotund, about J as long as the calyx-lobes. 

 Ovary glabrous. 



&ower Oulnea. Angola; Malange, MechoWt 202 ! Huilla, 5500 ft., Antunes, 

 149! 



3. G. Mittnorum, Gilg in Engl. Jahrb. xix. 260. Flowering 

 stems erect, unbranched, slender, 4-angled, glabrous, 4-12 in. high, 

 arising from a very stout woody ascending or erect rootstock. Leaves 

 oblong, frequently oblong-obovate, obtuse, rarely subacute, narrowed to- 

 wards the base, glabrous, J— J in. long, 2-4 lin. broad. Heads terminal, 

 7-10-flowered ; involucral bracts 3-4, broadly ovate, more or less rounded 

 at the apex, erect during flowering, 3 lin. long, 2 lin. broad. Flowers 

 4-merous, brownish-yellow (Schweinfurth) ; pedicel about J lin. long, 

 bearing a brush of erect white hairs at the summit. Calyx-tube slender, 

 puberulous or almost glabrous, 4-5 lin. long ; lobes oblong, glabrous, 

 1-1 J lin. long. Petals more or less broadly oblong or suborbicular, 

 narrowed to the insertion, thickened, usually somewhat marginate, 

 J-J as long as the calyx-lobes. Ovary glabrous. 



Vile land. Dar Fertit: Dem Adlan, Schweinfurth, iii. 114! Mittu: 

 Deragoh, Schweinfurth, 2826 ! 2856 ! 2850 (ex Gil^). Reggo, Schtceinfurth, 2790 ! 

 Uganda : Nnndi, in dry, bare places, Scott-Elliot, 6997 ! 



4. G. hmllensiSy Gilg in Engl. Jahrh. xxiii. 206. Flowering stems 

 numerous, erect, unbranched, slender, 4-8 in. high, arising from a stout 

 woody rhizome. Leaves distant, linear or linear-lanceolate, narrowed 

 towards the base, more or less rounded at the apex, sessile, glabrous, 

 J-f in. long, J-1 lin. broad. Heads terminal, few-flowered (12-17), 

 pedunculate ; peduncle leafless, ^-1 in. long ; involucral bracts about 5, 

 broadly ovate or orbicular-ovate, acute or subacute at the apex, 

 apparently greenish-red in colour, erect during flowering, less than J 

 the length of the flowers. Flowers 4-meious ; pedicels minute, bearing 

 a brush of long erect silky hairs. Calyx-tube glabrous below the articu- 

 lation, puberulous above, about J in. lonp ; lobes ovate, subacute, 

 glabrous or pilose on the outside, lJ-2 lin. long, 1 lin. broad. Petals 

 oblong, fleshy, about J as long as the calyx-lobes. Ovary glabrous. 



Kower Guinea. Angola : Huilla, Antunes, 107 ; Amboella ; by the Nambali 

 <Kubango) River, 4000 ft., Baum, 253! Mahinge, Oossweiler, 1013 ! 1015! 1023 ! 



Baum'g specimen, received from Berlin as Q. huillensis, differs from Dr. Gilg's 

 description of Antunes 107 in possessing glabrous calyx-lobes. 



