648 



BOTANY 



PART II 



IMPORTANT GENEKA. /V/< "/, with several British species. Herbs with rosettes 

 of leaves. Flowers solitary or in umbellate inflorescence* The capsules open by 

 five teeth at the summit. Commonly grown as ornamental plants. Anagallis, 

 capsule opens by a lid (pyxidium). Stem prostrate with leaves in decussate pairs 

 f Fig. 714). Lysimachia, large herbaceous plants, with erect or creeping stems and 



Fio. 712. PrflnuUceae. Floral 

 diagram (I'nmulc.). 



FK;. 713.- I'li'-hiim a . in-iijHifiiiii. A. entire plant : />'. fruit. 



Fit;. 714. AwmaUitarveitthQ nat. si/i-). 

 Longitudinal section of (lower ami 

 capsule at ilehiscence (cular^fd). 



decussate leaves. Cyclnmi'ii i 4 - , flowers bent back on long stalks ; tips of the 

 petals bent back. .Many species and hybrids are in cultivation. C. europaeum, the 

 Alpine Violet (Fig. 713), is a herbaceous plant found in the Alps ; the somewhat 

 fleshy leaves have long stalks, and are borne on a large perennial tuber, which 

 originates from the hypocotyl of the seedling. The stalks of the fruits become 

 spirally rolled. 



Poisoxors. The tubers of Ci/cfa num 1'urojnn ///. though harmless when cooked, 

 are poisonous in the fresh state. Anagallis is slightly poisonous. Primula obconica 



