DICOTYLEDONES— THALAMIFLOE^ 



2G3 



Sub-Class II. — POLYPETAL.^. 



Series. I. — Tlialamiflorce, 

 Cohort 1. — Banales. 

 Order 46. Raxunculace.e, the Buttercup Order. — Cha- 

 racter. — Herbs or rarely cHmbmg shrubs, with a watery, 

 colourless, usually acrid juice. Leaves radical or alternate (or 

 opposite in Cleniatideae), generally much divided, or sometimes 

 entire, with usually dilated and amplexicaul petioles. Stijndes 



Fig. 1019. 



Fig. 1021. 



Fig. 1022. 



Fig. 1023. 



Fig. 1024. 



Fi(i. 1019. Diagram of the flower of a species of Rnniinculits. Fig. 1020. 



Vertical Fection of the flower of lianu)Hiiln.-t acris. c. Calyx, pe. Petals. 



e. Stamens. /». Carpels. F;)/. 1(»21. Adnate anther of a Rainmculaceous 



plant. Fiff. 1022. Numerous follicles of Troll ins eiiropieits. Fig. 102.S. 



Vertical section of tlie seeil of the ilonkshood (AconUian). xp. Coverinas 



of the seeil. einb. Embryo. aJh. Albumen. Fit/. Iu24. Vertical set'tion 



of a. carpi-l of Jia?i:i>ici/Ii/x acris. n. Ovary, i/. Ovule, s. Stigma. 



generally absent ; if present, adnate. Inflorescence generally 

 terminal ; one-flowered, or racemose, or paniculate. Floiuers 

 regular, or rarely irregular, usually hermaphrodite ; often 

 acyclic or hemicyclic. Cahjx of 3 6, usually 5 distinct sepals, 

 regular or irregular, sometimes petaloid ; deciduous, or very 

 rarely persistent ; aestivation imbricate (or valvate in Clema- 

 tideafi). Corolla either isomerous with the cah'x, or having 

 numerous petals ; regular or irregular. Petals distinct, hypo 

 gynous, sometimes ; sometimes modified into nectaries : 

 aestivation imbricate. Stamens co , pluriseriate, or spirally ar- 



