RUB I ACE M. 



353 



within the four others. The praefloration is imbricate. The 

 androecium is composed of five stamens, alternate with the lobes of 

 the corolla and inserted on the tube, composed of a filament and a 

 bilocular introrse anther dehiscing by two longitudinal clefts. The 

 ovary is inferior with two cells/ complete or incomplete, and is 



Diervilla {Calyptrostigma) Middendorffiam. 



Fig. 358. Seed (^). 



Fig. 357. Dehiscing fruit (f). 



Fig. 359. Long. sect, 

 of seed. 



surmounted by a style the stigmatiferous head of which is sometimes 

 obscurely bilobed. Each cell contains numerous ovules, primarily 

 descending, anatropous. The fruit, often surmounted by the calyx, 

 is an elongate septicidal capsule, the seeds of which are bare, angular, 

 or bordered with a wing,^ sometimes narrow as in some Weigelas, and 

 sometimes elongate, as in D. Middendorffiana (fig. 357-J359), type of 

 a genus Galyptrostigma. The small embryo is surrounded by a fleshy 

 albumen. Diervilla consists of erect or subsarmentose shrubs of 

 China, Japan and North America. The leaves are opposite, sessile 

 or petiolate, entire or serrate. The flowers ^ are in simple or com- 



Hibl. Qenive (Jan. 1839).— H. Bn. Adansonia, 

 i. 364.— B.H. Gen.n.6,n. II.— WeigelaTuv^n. 

 Act. Holm. (1780) 135, t. 5 ; Trans. Linn. Soc. 

 ii. 331; Fl. Jap. 6, t. 16.— Lamk. III. t. 105.— 

 A,I)C. Ann. Sc. If at. ser. 2, xi. 22,1 .— Weigdia 

 Pers. Synops. i. 176. — Calysphyrum Bge. Emm), 

 ri. Chin, Bor. 33. — Endl. Gen. n. 3339.— 



VOL. VII. 



Calyptrostigma Trauttv. et Mey, Middend. Meis. 

 Fl. Ochot. 46 (not Kl.). 



1 Sometimes three. 



2 H. Bn. Adansonia, xii. 310 ; Bull. Soc. Linn. 

 Far. 202. 



3 Yellow, white, pink or purple. 



A a 



L 



