114 POLYGONACEAE. 



Pleuropterys Zuccarinii Small, Japanese Knotweed, Japanese, occa- 

 sionally planted for ornament, is a large perennial herb, 4°-8° high, spreading 

 by rootstocks, with ovate, acuminate leaves 2'-6' long, and many panicled 

 racemes of small, white flowers. [Polygonum cuspidatum Sieb. and Zucc, not 

 of Willd.] 



Muehlenbeckia platyclada (F. v. M.) Lindaii, Centipede Plant, Poly- 

 nesian, a shrub up to 10° high, with flat jointed leafless branches, the small 

 green flowers clustered at the joints, is grown in gardens for interest. Reade 

 made a curious error in referring this plant to the genus Xylophylla of the 

 Spurge Family, and this was copied by H. B. Small. [Coccoloha platyclada 

 F. V. M. ; FPolygonum platyphyllum of Jones.] 



Muehlenbeckia complexa Meisn., Twining Muehlenbeckia, of New Zea- 

 land, a very slender vine up to 6° long, at first finely pubescent, its nearly 

 orbicular, slender-petioled leaves Y broad or less, its membranous sheaths about 

 li" long, was grown on a w^all at Woodhaven in 1914; the flowers of this plant 

 are very small, greenish and axillary. The plant is wholly different in aspect 

 from the preceding species. 



Antigonum leptopus H. & A., Corallina, Corallita, Coral Plant, 

 Mexican, a slender, climbing herbaceous vine, with small rose-pink or sometimes 

 white flowers, is much grown in gardens for ornament. 



Lefroy records that roots of Rhubarb (Eheum Bhapdnticum L.), intro- 

 duced In 1872, soon died out. Other attempts to raise this vegetable have been 

 made, but without much success. 



Order 13. CHENOPODIALES. 



Herbs, mostly with perfect flowers. Calyx present. Corolla, if pres- 

 ent, polypetalous. Ovary superior. Embryo coiled, curved or annular. 

 Fruit not an achene. 



Fruit a utricle. 



Flowers bractless, or, if bracted, the bracts not scarious^; sepals green or greenish. 

 Plants not climbing nor trailing. 

 Climbing or trailing vines. 

 Flowers bracted, the bracts, and also the sepals, 

 mostly scarious. 

 Fruit fleshy, enclosing several carpels ; a berry. 

 Fruit an anthocarp, the persistent base of the corolla- 

 like calyx enclosing a utricle. 

 Fruit a capsule, dehiscent by valves, or teeth. 

 Capsule 2-several-celled ; petals none. 

 Capsule 1-celled ; petals mostly present. 

 Sepals 2. 

 Sepals 5 or 4. 



Sepals distinct ; ovary sessile ; petals not 



clawed. 

 Sepals united ; ovary stipitate ; petals clawed. 



Family 1. CHENOPODIACEAE Dumort. 



GoosEFOOT Family. 



Annual or perennial herbs, rarely shrubs, with angled striate or terete 

 stems. Leaves alternate or sometimes opposite, estipulate, simple, entire, 



