LINAGES. 



43 



convex receptacle. The calyx is formed of five free sepals disposed 

 ill the bud iu quiucuucial prtefloration, and the corolla consists of 

 five alternate petals, like the sepals also contorted in the bud and 

 falling early. The stamens are ten in number, all united among 



Linum usUatissimain. 



Fig. 70. Long. sect, of flower (j). 



71. Diagram. 



Fig. 72. Flower, 

 williout perianth (f). 



Fig. 73. Calyx, 

 and gynieceum ('|). 



Fig. 74. Dehiscent, 

 fruit (;). 



Fig. 75. Long, 

 sect, of seed (|). 



themselves at the base ; but only five of them, those superposed to the 

 sepals, are fertile, beiuu; formed of a filament dilated lielow and of an 

 iutrorse bilocular anther dehiscing by two longitudinal clefts '. The 

 five other stamens are destitute of anthers and reduced to short 

 filaments superposed to the petals. Outside the androceum are seen 



— TuHi'. in Diet. He. Kat. Atl. t. 135. — Si'acii, 

 Suit, a liiiffnit, iii. 272.— Endl. Qeii. n. 6056.— 

 Payer, (hr/aii'iff. 65, t. 13.— B. H. Geii. 242, n. 

 2. — H. I5n. in Paffci- Fiim. Nat. .395.— Schnizl. 

 himoijr. t. 255. — Lem. et Done. Tr. Ocii. 356 

 (incl. : Adeiiolhiiim Reichii. Cathaitulinum 

 Reichb. Cliococca Bah. Linuj)sU Reichii. Iludiula 



Gmel. Reiinvardtia Du.moet. XaiithuHnum 

 IIeiciii).). 



' The pollen is according to H. BIohl (in Ami. 

 Sc. Nat. ser. 2, iii. 335), " ovoid ; three folds ; in 

 water, cllipsoidal-lluttencd with thioo bands. 

 L. Austriaciwt, 1,. Flarum." 



