4l6 Sir E. F. Bromhead's Attempt to ascertain 



piments (if any) vei-tical, formed of the inflexed edges of 

 the carpellary leaves or of the endocarp issuing from the mid- 

 rib. Stigmas not sessile (exc. Resedaceae). Ovules 1 or 

 2 to each carpel or indefinite. Fruit a capsule, more or 

 less dehiscent from the vertex (exc. Mundia, Monina, Securida- 

 ca, Krameria). Albumen present (exc. Tamaricaceae, Krameria, 

 some Linaceae), enclosing the embryo. 



25. Brassicales. — Not arboreous, nodes imperfect ; leaves 

 not opposite (exc. some Brassicaceae) ; stipides or simulated 

 (some Cappareas). Flowers not sessile, inclining to a binary 

 structure, sexes united. Calyx of ^ or more sepals or di- 

 visions, deciduous. Corolla rarely absent, hypogynous, of 

 4 or more petals or.divisions, deciduous. Stamens 2 or more, 

 definite or in definite parcels or indefinitely quaternary, hy- 

 pogynous. Carpels 2 or more, symmetrical, free from the 

 calyx, connate with each other (exc. ? some Papaveraceae). 

 Dehiscence (if any) at the carpellary midrib; placenta cen- 

 tral to the valves; ovules many (exc. Tremandraceae, some 

 Brassicaceae), seeds not erect. Style short or ; stigmas al- 

 ternating with the placenta?, obtuse. Albumen (if present) 

 enclosing the embryo ; exalbuminous embryo curved ; radicle 

 near the hilum ; cotyledons foliaceous in germination. 



Inclining to a temperate habitat. 



26. Nymph^ales. — Herbaceous or frutescent, perennial, 

 not climbing nor sarmentaceous ; leaves radical or alternate, 

 petioled, simple, usually large ; stipules 0. Sexes united ; 

 flowers regular, not sessile, solitary on the scapes and large, or 

 panicled and small (Cephalotaceas). Sepals 3 or more ; sepals 

 and petals (if any) in one or more rows, same number (3-6) in 

 each row ; petals not twisted. Stamens not fewer than tlie 

 row of sepals ; rows of petals and stamens alternating ; petals 

 and stamens issuing from the torus, whether developed into a 

 disk or not, and whether adherent to the calyx or ovary or 

 neither ; anthers bilocular, bursting longitudinally inwards, 

 connective continuous with the filament. Carpels forming in- 

 dependent cells, free from the calyx, distinct or united by an 

 urceolate cap (Nymphaeaceae). Placentce basilar, or lateral, or 

 attached to dissepiments proceeding from the parietes to the 

 centre (Nymphaeaceae). Albumen (if present) having the em- 



