128 Sir E. F. Bromhead''s Attempt to ascertain 



umbellate. Having a calyx more or less petaloid, or having 

 petals ; sepals inclining to be connate when the sexes are united, 

 a bractea or the calyx or its base persistent (exc. some Protea- 

 ceae). Petals rarely present (Olacaceae), 3-6, valvate. Fertile 

 stamens 2-10, more or less adherent to the apetalous calyx 

 (exc. Bellendena) ; anthers bilocular (exc. some Proteaceae), 

 dehiscing longitudinally inwards. Carpels 1 or 4 (Penaeaceae), 

 carpels (if more than 1) connate with each other, ^rae from the 

 calyx (exc. Santalaceae). Stigma on a style or subulate (Elae- 

 agnaceae). Ovules not more than 4 to each carpel (exc. some 

 Proteaceae with stipitate ovaries) ; seed not more than 1 matu- 

 ring for each carpel (exc. in Proteaceae). Albumen (if present) 

 fleshy, enclosing the embryo ; embryo (if formed) straight, axile 

 (exc. some Proteaceae) ; radicle more or less in the direction of 

 the hilum. 



Inclining to a warm habitat. 



16. AcANTHALEs. — Stems round or compressed or tetrago- 

 nal with perfect nodes, not lactescent ; stipules 0. InJloreS' 

 ceuce not circinate nor capitate. Calyx rarely obsolete (some 

 Oleaceae, some Acanthaceae), herbaceous, persistent, odd caly- 

 cine division superior. Corolla rarely absent (Fraxinus), of 4 

 or 5 or 8 divisions, monopetalous (exc. some Oleaceae), more or 

 less valvate or imbricate or labiate, following the ovary in being 

 free from the calyx or adherent, deciduous. Stamens 2 or 4 or 

 5, or 6 connate in 2 parcels (Columelliaceae) ; 2 or 4 fertile 

 and in the latter case didynamous, adherent to the corolla, al- 

 ternating with the coroUine divisions ; anthers opening longi- 

 tudinally, the connective or dehiscence abnormal (exc. Jasmina- 

 ceae, Bignoniaceae), pollen powdery. Pericarpous disk more 

 or less developed (exc. Oleaceae, Jasminaceae, Pinguiculaceae). 

 Carpels not exceeding 4, carpels (if 2) with the midrib facing the 

 odd sepal, connate with each other. Style 1 or (some Olea- 

 ceae) ; stigma bilamellate or bilobed or bifid or concave (Ges- 

 neraceae) or undivided (some Oleaceae, some Acanthaceae) or 

 quadrifid (some Pedaliaceae). Ovules (if basilar or pendulous) 

 not exceeding 2 to each carpel or (otherwise) indefinite. Albu- 

 men (if present) enclosing the embryo ; embryo axile, straight 

 (exc. some Acanthaceae), cotyledons foliaceous. 

 Inclining to a warm habitat. 



