MACLOSKIE : POLYGONACE/E. 353 



like the others. Sheaths enlarged at the mouth, very thin without bristles. 

 Pedicels subglabrous, obsoletely glandulous. Achene pale-fuscous, not 

 shining. 



Patagonia, near Cabo Raso, and Lago Colu-huapi. 



7. POLYGONUM MARITIMUM Linn. Seaside Knotweed. 



Root deep. Stem 20-50 cm. long, prostrate or ascending, branched, 

 deeply striated. Leaves ovate to oblong, fleshy, about as long as the 

 internodes, 6-24 mm. Sheaths large, 2-parted or lacerate above. Flowers 

 1-3 in the axils, slender-pediceled. 



(Eur. and U. S., by the sea; also S. Afr.) S. Chili to Magellan. 



N. and E. Fuegia. (Dusen.) 



5. ANTIGONON Endl. 



Climbing herbs from a woody base, the stem and branches ending in 

 tendrils. Leaves alternate, usually cordate, with ochrece small or mere 

 lines. Perianth 5-6-partite, red, the outer 3 segments large, cordate, 

 accrescent in fruit about the trigonal achene. Stamens about 8, on an annu- 

 lus with intermediate teeth. Styles 3 with capitate stigmas. Endosperm 

 ruminate. 



Species 3-4, Mexico and southwards. (Cult, in gardens.) 



A. LEPTOPUS Hook. & Arn. 



Leaves ovate-cordate, acuminate, mostly tomentose underneath. Rachts 

 of raceme ending in 3-hooked tendrils. 



(Fig. in Eng. & Prantl, iii, la, p. 31, fig. 14.) 

 S. Chili ; probably in N. Patagon. 



6. MUEHLENBECKIA Meis. 



Undershrubs like Rnmex, often twining, with stalked, alternate leaves ; 

 sheaths small, or leafless ; and small, polygamo-dicecious flowers in axil- 

 lary or terminal fascicles. Perianth 5-cleft, fleshy, persistent. Stamens 

 8. Styles 3, with dilated stigmas. Nut trigonal, included, or apically 

 exsert. 



Species 15, Australia, N. Zeal., Pacific Is. and Extra-trop. S. Amer. 

 (M. platyclada Meis., of Solomon's I., has flat phyllodes with very few 

 leaves.) 



