1365 



^PIRiEA* arisefdlia. 

 Beam-T7'ee-leaved Spiram. 



ICOSANDRIA PENTAGYNIA. 



Nat. ord. Rosacea Jussieu. (Introduction to the natural system of 

 botany, p. 81.) 



SPIRjEA L. — Calyx 5-fidus, persistens. Stamina 10-50 cum petalis 

 toro calyce adhserente Inserta. Carpella 1-00 distincta, rariter basi coalita, 

 breve apiculata, sessilia, raro stipitata. Semina 2-6 suturse internee affixa, 



exalbuminosa. Embryo inversus, cotyledonibus crassiusculis. Frutices 



inermes, v. herbee perennantes. Rami alterni. Folia alternay simplicia, 

 raro decomposito-pinnatisecta, nervis pennatis v. ternato-palmatis. Flores 

 albi aut rubicundi nunquam flavi. — Dec. prodr. 2. 541. 



§ Spiraria. Ovaria libera. Torus apice liber, basi tubo calycino con- 

 cretus. Carpella non injiata. — Frutices. Flores hermaphroditi paniculati. 

 Folia serrata exstipulata. — Dec. I. c. 

 S. aricefolia ; foliis ovatis obtusis inciso-serratis subpinnatifidis basi cuncatis 



subtus tomentosis, panicula multiflora villosa basi divaricata. 

 S. ariaefolia. Smith in Rees, vol. 33. Dec. prodr. 2. 544. 

 S. discolor. Pursh Jl. am. bor. 1. 342. Dec. prodr. 2. 545, 



Frutex erectus, dumosus, ramis strictis epidermide cinnamomeo-griseo 

 obductis, subangulatis. Folia simplicia, ovaio-oblonga, supra glabra, subtils 

 tomentosa, nunc gross^ serrata, nunc inciso-serrata-, nunc pinnatijida, basi 

 cuneata, laciniis obtusis, serratis ; stipulis obsolefis. Paniculse terminales, 

 multijlorce, densce, ramis inferioribus scepius longioribiis, divaricatis ; ramulis 

 villosis. Calyx rotatus, albus, 5-partitus, laciniis ovatis, villosis, peta- 

 loideis. Petala laciniis calycinis suhcequalia, oblonga, venis tribus in medio. 

 Stamina in disco tubum calycis tegente inserta. Carpella 5, villosa, mono- 

 sper?na, ovulo solitario appenso. 



A handsome hardy shrub, native of the North-west 

 of North America, where its seed was collected by 

 Mr. Douglas for the Horticultural Society. It was 



* The shrub called a-7ru^x7x by Theophrastus, and spireon by Pliny, is 

 supposed by some to have been our Spiraea salicifolia, by others Viburnum 

 Lantana. The latter is called by the modern Greeks kM/^x^i'^x ; the former 

 seems to be unknown to them. 



