DICOTYLE DONE S^THALAMIFLOE^E 



203 



Sub-Class II. POLYPETAL^. 



Series I. — Thalamrflortz'. 

 Cohort 1. — Hanales. 

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

 racter. — Herbs or rarely climbing shrubs, with a water j-, 

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

 opposite in Clematidese), generally much divided, or sometimes 

 entire, with usually dilated and amplexicaul petioles. Stipidcs 



Fir. 1019. 



Fig. 1020. 



Fig. 1021. 



Fig. 1022. 



Fig. 1023. 



Fig. 1024. 



FUj. 1019. Diagram of the flower of a species of Ranitnadm. Fig. 1020. 



Vertical section of the flower of Ranum-iilu^ acris. c. Calyx, pe. Petals. 



c. Stamens, p. Carpels. Fig. Hr21. Arlnate anther of a Ranuncniaceou.s 



plant. Fig. 1022. NumeroLis follicles of Tri'llius enropcem. t'iij. 1023. 



Vertical section of the seed of the Monkshood ( Aconitnm). up. Coverings 



nf the seed, einh. Embryo, alh. Albumen, Fig. 1024. Vertical section 



of a carpel of Raniinailiu aeris. o. Ovary, g. Ovule, s. Stigma. 



generally absent ; if present, adnate. Inflorescence generall.y 

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

 regular, or rarely irregular, usually hermaphrodite ; often 

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

 regular or irregular, sometimes petaloid ; deciduous, or very 

 rarely persistent ; aestivation imbricate (or valvate in Clema- 

 tideae). Corolla either isomerous with the calyx, or having 

 numerous petals ; regular or irregular. Petals distinct, hypo- 

 gynous, sometimes ; sometimes miodified into nectaries : 

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



