u 



NATURAL HISTORY OF PLANTS. 



V. NASTURTIUM SEEIES. 



The flowers of the Nasturtiums^ (fig. 31-39) are hermaphrodite 

 and irregular. They haye a concave receptacle, in the form of a 

 porringer, the posterior part being prolonged into a spur of variable 



Tropteoltan nuijus. 



Fig. 31. Floriferous branch. 



form and size '^. Upon the edges of the cup are inserted five sepals^, 

 quincuncially imbricate or valvate in the bud (sepal 2 being posterior 

 and corresponding to the spur). The petals are often the same in 



1 L. Qen. n. 466.— J. Geii. 269; in Mem. 

 Mus. v. 230.— Lamk. Diet. i. 610 ; Suppl. 

 ii. 86 ; 111. t. 277.— Tttrp. in Diet. Se. Nat. 

 All. t. 133.— DC. Prodr.i.&U.— fit Acn, Suit. 

 d Buffm iii. 4.— Endl. Qen. n. 6063.— Payee, 

 Orgattog. 77, t. 16. — Chat, in Ann. Sc. Nat. 

 eer. 4, v. 283. — H. Bn. in Payer Fam. Nat. 

 403. — B. H. Gen, 274, ii. 7. — Schnizl. leonogr. 

 t. 258.— Lem. et Done. Tr. Gdn. 353 (incl. ; 

 Anisoeentra Don, Chymocarpus Don, Magallana 



CoMMEKS.). — Cardamindwn T. Inst. 430, t. 224. 

 — Adans. Fam. des £1. ii. 338. — Acriviola 

 BoERH. (ex Adans.). 



' It is free, sometimes wide and not very deep, 

 sometimes very large, straight or curved, glan- 

 dular at the hottom ; so that the cavity often 

 contains a sweet nectar. It is sometimes want- 

 ing in some cultivated flowers ; in other cases 

 it is more or less deeply lined. 



' Often petaloid, coloured. 



