Polygonum.| POLYGONACE& (Wright). 467 
_. 7% P. serrulatum (Lag. Gen. et Sp. Nov. 14); annual; stem 
slender, glabrous, 2-3 ft. long, erect or decumbent at the base . 
leaves lanceolate, acuminate, rounded at the base, subsessile, 
glabrous or slightly hairy, the lower 3—4 in. long ; ochrew ciliate 
with long bristles; spikes slender, cylindrical, often several to a 
stem, 1$-2 in. long; peduncle very slender, glabrous ; bracts 
rigidly ciliate ; perianth pink, eglandular, 1 lin. long ; stamens 6-8 ; 
styles usually 3; nut usually trigonous, polished, shorter than the 
perianth. Meisn. in DC. Prodr. xiv. 110 ; Engl. Hochgebirgsfl. Trop. 
Afr. 202; Gage in Rec. Bot. Surv. Ind. ii. 425 ; Bolus Wolley-Dod 
in Trans. 8S. Afr. Phil. Soc. xiv. 311; Baker & C. H. Wright in Dyer, 
Fl. Trop. Afr. vi. i. 107. P. salicifolium, Del. Fl. Aigypt. Ilustr. 
12; Meisn. Lc. P. strictum, Meisn. in Linnea, xiv. 485, as to the 
South African plant. P. abyssinicum, A. Rich. Tent. Fl. Abyss. ii. 
225. P. scabrum, Hiern in Cat. Afr. Pl. Welw. i. 903, an Poir? 
SourH Arrica: without locality, Banks & Solander! Oldenburg ! Pappe! 
Cunningham ! 
Coast Rrcion: Cape Div.; Cape Flats, near Rondebosch, Burchell, 175! 
Camps Bay, Burchell, 383! Black River, Wolley-Dod, 622! about the Ponds and 
at Salt River, Burchell, 671! Caledon Div.; Palmiet River, near Grabouw, 
700 ft., Bolus, 4187! Uitenhage Div. ; at or near Uitenhage, Burchell, 4234! on 
marshy ground near the Zwartkops River, Zeyher, 227! Div.? Five Islands 
District, Bowie! 
CreNnTRAL REGION : Somerset Div. ; near Somerset East, 2800 ft., MacOwan, 
1055! 
Katanart Reaton: Orange River Colony, Mrs. Barber! Parys, 4000 ft., 
Rogers, 2385 ! Transvaal ; Barberton, Miss Thorncroft, 28 ! 4978 ! MacMac, Mudd ! 
Lydenburg, Wilms, 1285! Komati Poort, 600 ft., Rogers, 84! Pretoria, Miss 
Leendertz, 164 ! 
Eastern Recion: Transkei; Gekau (Geua) River, below 1000 ft., Dréye! 
Kentani, 1200 ft., Miss Pegler, 402! Natal; Durban, 0-1000 ft., Grant! 
Sutherland | Peddie! Gerrard, 653! near York, Wood, 4321! Polela, Fourcadi in 
Herb. Wood., 4238! Drakensberg, Rehmann, 7021! Alexandra District, Dumisa, 
Rudatis, 287 | Swaziland ; Hlalikulu, Miss Stewart, 23 ! 
Also in Tropical Africa, 
8. P. barbatum (Linn. Sp. Pl. ed. i. 362); perennial; stem 
slender, erect, hairy upwards or throughout; leaves lanceolate, 
acuminate, narrowed to the base, nearly sessile, usually hairy on 
both surfaces, the lower 4-6 in. long ; racemes cylindrical, slender, 
2-3 in. long; peduncles hairy ; bracts conspicuously ciliate with 
rigid bristles ; perianth pink, eglandular, | lin. long ; stamens 6-8 ; 
ovary shortly conical ; styles 3; nutlet trigonous, small, smooth. 
Thunb. Fl. Cap. ed. Schult. 385; Wight, Ic. t. 1798; Meisn. in DOC. 
Prodr, xiv. 104; A. Rich. Tent. Fl. Abyss. ii. 226; Aschers. in 
Schweinf. Beitr. Fl, Aethiop. 170; Hook. f. Fl. Brit. Ind. vy. 37 ; 
Engl. Hochgebirgsf. Trop. Afr. 201 ; Schweinf. in Bull. Herb. Boiss. 
iv. App. ii. 155; De Wild. Etudes Fl. Bas et Moyen Congo, i. 238 ; 
Gage in Rec. Bot. Surv. Ind. ii. 425 ; Baker & CO. H. Wright in Dyer, 
Fl. Trop. Afr. vi. i. 109. 
Coast Raton: Cape Div. ; Muizenberg, Wallich, 394! 
Also in Tropical Africa and Tropical Asia. A age 
H 
