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SPIRJÉA* chamedrifólia, 
Germander-leaved Spirea. 
ICOSANDRIA PENTAGY NIA. 
Nat. ord. Rosacer. 
` SPIRZEA L. — Calyx 5-fidus, persistens. Stamina 10-50, cum petalis 
toro calyce adherente inserta. Carpella 1-00 distincta, rarò basi coalita, 
brevè apiculata, sessilia, rar) stipitata. Semina 2-6, suture interne affixa, 
exalbuminosa. Embryo inversus, cotyledonibus crassiusculis. Frutices 
inermes, v. herbe perennantes. Rami älterni. Folia alterna, simplicia, 
rarò decomposito-pinnatisecta, nervis pinnatis v. ternato-palmatis. Flores 
albi v. rubicundi, nunquam flavi: Decand. prodr. 2. 541. 
$ Chamedryon. Ovaria libera. Torus apice liberus, basi tubo 
calycino concretus. . Carpella non inflata.  Frutices. Flores her- 
maphroditi umbellati v. subcorymbosi, pedicellis indivisis unifloris. 
Folia integra v. dentata exstipulata. Dec. J. c. 
S. chamedrifolia ; foliis ovatis acuminatis inciso-serratis glabris, ramis angu- 
latis flexuosis, corymbis terminalibus hemispheericis. 
Spiræa chamzedryos foliis. Ammann stirp. rar. 190. 
S. chameedrifolia. Zinn. sp. pl. 1. 701. n. 9. Pall. ross. t. 15. Sol. ad 
basin sinistr. 
? S. chameedrifolia «. Cambessedes mon. p. 362. 
S. ulmifolia. Scopoli carniol. 1. p. 349. t. 22... Willd. sp. v. 2. p. 1154, 
Dec. prodr. 2. 542. 2 
Frutex humane altitudinis, erectus, ramosus, ramis cinereis, junioribus 
flexuosis angulatis. Folia ovata, acuminata, inciso-serrata, glabra, Ulmi 
campestris magnitudine, petiolis pilosis.  Corymbi terminales, pedunculati, 
hemispherici, subracemosi. Flores albi, majusculi. 
The genus Spirza has been excellently remodelled by 
M. Cambessedes, in a valuable paper published in the 
Annales des Sciences Naturelles: but a great deal of con- 
.* According to Sprengel, the extgaée of Theophrastus was the modern 
Spiræa salicifolia. It seems to have derived its name from rasgde, to 
become spiral, in allusion to the fitness of the plant for twisting into 
garlands, &c. 
