106 CLASS XX. ORDERS VI and XIII. 



32 — elaiioi', (common hogweed) leaves doubly-pin- 

 nate smoothish with ciliate petioles, racemes termi- 

 nal panicled. ©. — artefnisi/olia, branches fastigiatc. 

 0. — trifida^ leaves 3-Iobed, fruit 6-spined. 0. 



Amauanthus. Staminate flowers — calyx 3 or 5- 

 leaved : corol : stamens 3 or 5. Pistillate flowers. 

 — calyx and corol as the staminate : styles 3 : cap- 

 sule 1 -celled, opening transversely : seed 1. 54. 

 30 — oleraceus^ (pot amaranth) glomerules axillary 

 ramose, leaves rugose oblong very obtuse emargi- 

 naie. 0. g. — hybridus^ leaves lance-ovate, racemes 

 decompound crowded erect. •<^. g-p — hyfiochon' 

 driactisy leaves lance-oblong mucronate. Q. p.— 

 albusj glomerules axillary, leaves obovate retuse, 

 stem 4-sided. 0, — wze/ancAo/icws, (love-lies bleed- 

 ing) glomerules axillary peduncled, leaves lance- 

 ovate coloured- 0. p. e. 



Order VI. Hsxandria; 



ZizANiA. Staminate flowers — calyx : corol- 

 glume 2-valved, awnless, with pistillate flowers in- 

 termixed. Pistillate flowers — calyx : corol-glume 

 2-valved, cuculate, awncd : style 2-parted : seed 

 1 invested in the plaited corol. 4. 10 — clavulosa^ 

 (water oats) panicles branching, pistillate flowers 

 above, bract clavate. 



Order XIII. Polyandria. 



Myriophyllum. Staminate flowers— -calyx 4- 

 cleft : petals 4, caducous : stamens 4, 6 or 8, Pis- 

 tillate flowers — calyx and corol like the staminate : 

 pistils 4 : style : seeds 4, having a bark. 15. 6 — 

 f.jiicatum^ (water millfoil) leaves all pinnate capilla- 

 ry, lower ones whorlcd, all under water. %.. 



Sagittaria. Staminate flowers — calyx 3-leav- 

 ed : corol 3-petalled : filaments mostly 24. Pistil- 

 late flowers — cr.lyx and corol as in the staminate : 



