374 



NATUIiAL HISTORY OF PLANTS. 



IV. spirji:a series. 



Suirtea^ (tigs. 439-441) has regular polygamo-dioecious, or more 

 frequently bcrinaplirodite flowers. In the woody species with per- 

 fect flowers, largely cultivated in our gardens, such as S. lanceolata^ 

 we find a flattened cup-shaped receptacle, lined with glandular tissue, 



Spireea lanceolata. 



^'SDk 



Fig. 440. 

 Longitudinal section of flower. 



Fig. 439. 

 Branch. 



Fig. 441. 

 Diagram. 



and bearing on its edges the perianth and androceum ; while the 

 gyna3ceum is inserted right at the bottom. The calyx consists of 

 five valvate sepals, and the corolla of as many alternating sessile im- 

 bricated or contorted petals. The stamens are twenty in number, 

 arranged in three whorls. Five are superposed to the sepals, five to 



' Spirtfa T., Instit., 618, t. 389.— L., Gen., 

 n. 630.— Adans., Fam. des PL, ii. 295. — J., 

 Gen., 339.— G.T.RTN., Fruct., i. 337, t. 69.— 

 Lamk., Diet., vii. 348; Suppl., v. 221; III, t. 

 ■139.— Cambkss., Moitofir. du G. Spiraea, Ann. Sc. 

 Nat., 8i?r. 1, i. 224, 1. 1 5-17, 25-27.— Seb., in DC, 

 Prodi:, ii. .541. — Si'ach, Suit, d Buffon, i. 430. — 

 Exi>L., Gen., n. 6391. — Pater, Orpanog., 495, 

 t. cii.— B. H., Gen., Gil, n. \S,.— Ulmaria T., 

 op.cit., 265, t. \\\.—FilipendulalL., op. elf.. 



293, t. 150.— Barba CaprcB T., op. cit., 265, 

 t. 141. — Eriogyna Hook., Fl. Bor.-Amer., i. 

 255, t. 88. — Luetkea Bong., Mem. Acad. S.- 

 Petersb., vi. ser. ii. 130, t. 2.— Endl., Gen., n. 

 463(5. 



- PoiE., Diet., vii. 354, n. 15.— See., Prodr., 

 n. 7. — 5^. cantoniensis LouE., Fl. Cock., 322 

 (ex Cambess., loc.cit., 366, t. 25). — S. Reeved 



LiNDL. 



