112 CLASS-BOOK OF BOTANY. 
Clematis the style remains persistent on the achene, and 
besides, becomes elongated and very feathery. In Composites 
and other allied forms (e.g., some Valerians) the calyx-tube is 
persistent on the top of the achene, and 
the limb develops into a pappus, as in 
Thistle, Groundsel, Dandelion, &e. The 
Fig, 218. Fruit of 
Fig. 217. Feathered Dandelion, with 
achene of Clematis. pappus. 
Fig. 219. Seed of 
Epilobium. 
same method of dissemination is attained in Hpilobiwm and 
Parsonsia by the occurrence of long hair-like plumes on the 
seeds themselves. In other plants wing-like expansions serve 
Fig. 220. Seed of : 4 
ES ese Wig. 221. Winged fruit 
bets tere of Dodonea viscosa. 
Fig. 222. Winged 
fruit of Ash, long. 
. section. 
to catch the wind, 
and thus the fruits 
or seeds are trans- 
Fig. 223, Samara of Maple. ported considerable 
distances. This 1s 
the case in the winged capsule of Dodonea viscosa, and in 
the flattened seeds of New Zealand Flax (Phormiwm). It is 
