52 



NATURAL HISTORY OF PLANTS. 



\ 



of the truit us a long phnne covered with hairs which render it quite 



feathery (fi<^. 93). Other species form a transition between these/ 



as these hairs are only developed on the lower part of the 



,, style, leaving the stigmatic portion naked; such, for 



•; example, is C.fcetida Eaoul (fig. 94). 



C. cirrJiosa L. and some nearly allied species have 



been grouped by De Candolle^ into a separate section, 



, as the flower possesses an involucre formed of two lateral 



bracts, cohering for a great part of their length, and 



entirely enclosing the bud when young. The calyx has 



>here also four sepals. Above this the receptacle becomes 

 ovoidal, bearing numerous stamens, each with a fila- 

 ment flattened below, and an anther whose lateral cells 

 dehisce by somewhat introrse clefts. The surface of the 

 style is almost entirely covered with long villi. 



Finally there are species of this genus where the 

 flowers become polygamous or monoecious by the abor- 

 tion of one set of sexual organs, and other species where 

 the flowers of different sexes grow on different plants, as in C. diceca 

 L. which grows at the Antilles." 



LiNNiEUS separated Atragene" from the genus Clemaiis (in which 

 De Candolle again replaced it),^ because its flowers possess corollas. 



Clemafisfalida. 

 Fig. 9t. 

 Carpel.* 



V^ 



Fig. 95. 

 Flower. 



Clematis alpina. 



Fig. 96. 

 LoDorltudinal section of flower. 



But the petaloid tongues, from twelve to twenty in number, found 

 within the calyx of A. alpina (figs. 95, 96) or sibirica' are not true 



' Sect. Flammvla DC, Prodi:, i. 2 (incl. 

 Viorna SPACn, Suit, a Buff., vii. 2G8). 



* After llAOrt, Choix de Ft. N. Zel., t. xxii. 

 ' Cheirop.ii.i DC, Si/sl., i. 162 ; Prodr., i. 9.— 



Cambess., Ft. Balear. {in Mem. Mus., vii. 201). 



* To me this species appears polygamous, rather 

 than dioecious as the descriptions assert. 



5 Atragene'L.,Gen., n. 695.— Jirss., Gen., 232. 

 — Endl., Gen., n. 4769.— Spach, Suit, a Buff., 

 vii. 257 (A. Geas (in Bull. Soc. Bot. Fr., vii. 

 907) proposes to write Alhragene). 



" Syst., i. 165.— P/-0(/r., i. 9 (sect. iv). 



^ Clematis alpina and sibirica Mill., Diet., n. 

 9, 12.— Clematitis alpina T., Inst. 294. 



