112 cix. POLYGONACE^ (baker AND wright). [Polyyonum. 



South Central. Congo Free State: Monbuttu; Kibali River, Schweinfurt/t, 

 3549! 



MCozamb. Dlst. German East Africa : Kilimanjaro, 6000 ft., Johnston ! 

 l»ortuo-nesc East Africa : east side of Lake Nyasa, Johnson, 391 ! Lower Zambesi ; 

 near Expedition Island, Kirk ! Shamo, Kirk ! mouth of the Zambesi, Peters ! 

 British Central Africa: Nyasaland ; Umbaka 'R\\gy, Scott ! Kondowe to Karoiiga, 

 Whyie, 369 ! Upper Sliirc River, Scott-Elliot, 8490 ! 



Also in Egypt, Madagascar and Tropical Asia. 



17. P. Tanganikae, Schuster in Bull. Herb. Boiss. 2'"^ ser. viii. 709. 

 Root fibrous. Stem erect, about 3 ft. high, red, glabrous, thickened at 

 the nodes ; internodes \-2 in. long. Leaves 4-10 in. long, J-1 J in. wide, 

 lanceolate, acuminate, tapering downwards, with small setae on the midrib 

 and margins andcystoliths in the lamina, otherwise glabrous ; petiole 4-9 

 in. long. Racemes 3 or more together, 2—4 in. long, densely flowered ; 

 bracts turbinate, not glandular, glabrous ; pedicels naked. Perianth 

 rose-coloured, glandular; nerves rather firm and straight, parallel, once 

 or twice forked. Stamens 8. Style bipartite. Nut enclosed in the 

 perianth, H lin. long, about 1 lin. wide, compressed with concave faces, 

 shining. Cotyledons incumbent. 



Xlle Xiand. Somaliland : Webi Abaallah, Keller. 

 XiO'wer Guinea. Congo, Schimper, 48. 



Mozamb. Dlst. German East Africa: Lake Tanganyika, near Karema, 

 Bohm. 



18. P. acuminatum, //. B. d- K. Xov. Gen. et Sp. ii. 178. Stem 

 stout, pubescent. Leaves lanceolate, acuminate, pubescent, the upper 

 3-4 in. long, the lower up to 1 ft. long ; ochreae densely ciliate with 

 bristles. Spikes dense, cylindrical, 2-3 in. long, 2-4 to a stem ; bracts 

 ovate, usually ciliate. Perianth pink, not glandular, 1 lin. long ; 

 segments 4-5, ovate. Stamens included. Style bifid. Nut lenticular, 

 black, glossy. — Meisn. in DC. Prodr. xiv. 114 (not in Monogr. 

 Polyg. 78), and in Mart. Fl. Bras. v. i. 14, t. 4, fig. 1 (var. Ilwnboldtii) ; 

 Engl. Pfi. Ost-Afr. C. 170 ; Durand it Schinz, Etudes Fl. Congo, i. 235. 

 J\ Poiretii, Meisn. in DC. Prodr. xiv. 113; var. latifolinm, Dammer in 

 Engl. I.e. r. barhatum, T. Thorns, in Speke, Nile, Append. 645 ; Oliv. 

 in Trans. Linn. Soc. xxix. 142, not of Linn. P. nyikense, Baker in 

 Kew Bulletin, 1897, 280. 



Ito^srer Guinea. Angola and French Congo, ex Dammer. 



South Central. Congo Free State: Kingunchi, Buettner, 314, ex Durand Sc 

 Schim. 



Mozamb. Dlst. German East Africa: Usambara; Kwa Mshuza, Hoist, 

 2028 ! Kilimanjaro, 6000 ft,, Johnston, 90 1 in moist phices in the Coast Range, 

 Speke 4* Grant! British Central Africa: Nyasaland; Nyika Mountains, 4000- 

 6000ft., Whiite ! Mount Chiradzulu, Whyte ! and without precipe locality, 5Mc*//«na/j, 

 1265 partly ! 



Var. micros femon. Mart, ex Meisn. in Mart. Fl. Bras. v. i. 15, t. 4, fig. 2. 

 Leaves linear-l.inceolate, long acuminate, about 6 in. long, 4 lin. wide, adpn-ssed 

 hairy on both surfaces ; ochrea) with cilia 3 lin. long. Bracts deciduously ciliate. 



