CLASSIFICATION. 



a column with the style of the inferior 6-celled. ovary. 

 Ovules many. Fruit capsular. 



61. Aristolocliiaceae (p. 384). 



Order Proteales is a large Australian and South African order to 

 whioh the commonly cultivated Grevillea robusta, A. Cunn. belongs. This 

 is a handsome tree with twioe-pinnatifid leaves, and spic&te 2-aexual 

 4-meruns ytllow flowers in unilateral spikes. Perianth peialoid tubular 

 below. St. epiphyllous. Ovary 1-carpellary with 2 ovules and a very 

 long style. 



ProteaceaB (p. 385;. 



Ordef XIX. — Urticales (allied probably to Polygonacese). 



Trees, shrubs or herbs, sometimes with milky juice, and 

 with simple frequently palmi-nerved (esp. 3-nerved) stipulate 

 leaves. Stipules sometimes intra-petiolar and leaves often 

 dotted (due to cystoliths in the hypodermal cells). Inflor- 

 escence of cymes or clusters, rarely simple spikes, often 

 developing into large weudocarps. Fls. smdl greenish 

 unisexual (exc. UlmaceeD), regular, M. 4-5 (in Ultnacese 4-8) 

 -meroas with isomeroas (fewer in some figs) stamens opposite 

 the perianth- Lobes. Fern, sometimes naked, usually with a 

 2-5-toothed or -partite perianth. Ovary superior l-celled of 

 1-2 carpels. Style simple or 2-fid. Ovule 1 erect or 

 pendulous. 



Exceptions : — 



Where the flowers are crowded inside a swollen fleshy axis fy.g. the figs ) 

 they are often much reduced, the perianth may be 2-6 fid. or C, <he stamens 

 only 1-2. The leaves of Cannabis (the Hemp) are palmatey divided 

 and the seedling leaves of some Morace© are all but pinnate. 



Fls. are polygamous or 2-sexual in TJlmacea. 



62. The Nettle Family. 



Shrubs or herbs without milky juice, sometimes ,/ith 

 stinging hairs. L. alt. or opp. usually 3-nerved. Fls. in small 

 heads or cymes, heads often spicate. M. usually 4-5-marous. 

 F. with usually a 2-5-toothed or -partite perianth. Ovary 

 with only 1 style and stigma. Ovule erect orthotropous. 

 Fruit an achene, sometimes embraced by the more or less 

 fleshy perianth. 62. Urticacea (p. 38*)* 



SO 



