/ 

 CLASS V. ORDER II. 31 



29 — vulgaris (red beet) lower leaves ovate. % . c. 

 '—cicla^ (white beet) leaves ternate. S . e. 



Atriplex. Calyx 5-leaved, inferior : style 2- 

 parted : seed 1, depressed. Pistillate flowers are 

 intermixed, in which the calyx is 2-leaved. 12. 29 

 —patula^ (orach) stem procumbent. ^ — halimtis, 

 stem erect, very branching. Ij . (Stem woody.) 



Ulmus. Calyx bell-form withering, border 5- 

 cleft : seed 1, enclosed in a flat membranaceous sa- 

 mara. (Stamens vary from 4 to 8.) 53. 99 — a7ner- 

 icanuy (elm) flowers pedicelled ; a variety, jiendula^ 

 has drooping branches, h . — fulva, (slippery elm) 

 flowers sessile. 



Celtis. Polygamous. Calyx 5-paited : styles 

 thickish, spreading: drupe 1 -seeded : staminate 

 flowers beneath the perfect ones, with 6-parted ca- 

 lyxes h stamens 6. 53. 99 — occidentalis (nettle 

 tree) leaves ovate rough. 



E. Plants UMBELLIFEROUS. Floiuevs 6-fietallcdy 

 2'seeded, 



— ^— — TVith general and fiartial involucres^ 



Eryngium. Involucres many-leaved : flowers 

 in heads, all fertile : receptacle chaff'y : fruit crown- 

 ed, 2-partible. 45.60 — maritimum (sea-holly) leaves 

 radical spinous, b. 



CoRiANDRUM. Corols radiate, with petals in- 

 flected, emarginate : general involucre 1 -leafed ; 

 partial one halved : fruit globular. 45. 60 — sati' 

 vunii (coriander) fruit globose, w. e. 



HYDROCOTyLE. Umbcls simple and very small : 

 flowers all fertile: involucre 4-leaved : petals en- 

 tire : fruit half-orbicular, compressed. 45. 60— 

 americana, (water-navelwort) leaves crenate, reni- 

 form. w. 



Sanicula. Flowers of the disk abortive : um- 

 bels crowded into head-like heaps : seeds prickly. 



D 



