20 Servettaz, Monographie des Eleagnacees. 



alternantibus, antheris parvis, filamento quam antheras longiore, 

 quam lobis perigonii breviore, in fauce inserto; fl. foemineis in 

 axillis foliorum oppositis; perigonio ovoideo, tubuloso; limbo 

 quadripartito, patente; fauce glandulis 8 contiguis cincto. Pistillum 

 simplex, ovarium tubo perigonii inclusum, uniloculare, uniovu- 

 latum; stylo crasso, elongato, sub angulo 90° apice abrupte reflexo, 

 convexo latere longe stigmatoso. Fructus increscente perigonio 

 prorsum succulens, acidusvel insipidus. Semen unicum, obovoideum, 

 nitidum, luteum, latere subsulcatum. Hab. Americ. sept. 



Division du genre Shepherdia. 



(Ramis foliisque tomentosis; floribus solitariis vel binis vel ternis 

 Sh. rotundifolia Parry. 

 [Ramis foliisque haud tomentosis; floribus solitariis (2). 



1 Ramis spinescentibus; foliis utrinque argenteis; floribus albis. 

 Sh. argentea Nuttal. 

 Ramis haud spinescentibus; foliis supra viridibus, subtus argenteis et ferru- 

 gineis; floribus cupro-ferrugineis. Sh. canadensis Nuttal. 



2. 



Shepherdia canadensis Nuttal. 



Nuttal: Gen. of North. Am. PI. II, p. 240 (1818). Richard: Monogr. des 

 Eleagnees, p. 375 (1823). A. Gray: Man. of the Botany of the Northern United 

 States (1856). Schlecht, in D. C. Prodr. XIV, p. 607 (1857) et in Linnaea XXXII, 

 p. 298 (1863). Hooker: Fl. bor. Am. 2, p. 138, tab. 178 (1890). Williams: Notes 

 on the Flora of West-South-Dakota in Am. nat. vol. 26. Philadelphie (1892). 

 Britton: 111. Flora (1897). 



Syn. : Elaeagnus canadensis L. : Sp. PL p. 1024 (1753). Hippophae canadensis 

 Pursh: Fl. bor. Am. 1, p. 115 (1814). Lepargyraea canadensis Greene: Pittonia, 

 2, p. 122 (1890). Inco: Buffalo berry (Hooker), Soap berry (Howard). 



Frutex, inermis, 1,50 — 2 m; ramis reflexis, inermibus, oppo- 

 sitis, rubro - f errugineis ; medulla rubra. 



Folia caduca, mollia, ovalia, utrinque obtusa, saepe basi 

 dilatata et subcordata, margine integra, supra viridia, multi- 

 pilosa, pilis fasciculatis, dein glabrescentia, subtus tomentosa, 

 argentea squamis nonnullis ferrugineis conspersa; 4 — 6 nervis 

 primariis obliquis minime distinctis; petiolo brevi, ferrugineo, 

 subcanaliculato, 4 — 5 mm longo; lamina, 20 — 45 mm longa, 

 12—22 mm lata. 



Flores dioici, solitarie in axillis bractearum caducarum siti, 

 3 — 6 in ramulis racemuliformibus. Flores masculini subsessiles, 

 perigonio profunde 4-partito, conico, planiusculo; intus luteo- 

 viridi glabro, extus rubescente; lobis patentibus ellipticis elon- 

 gatis, extus rubescentibus, intus glabris luteo-viridibus, 2 mm 

 longis ; staminibus, 8 cum totidem glandulis alternantibus, antheris 

 minimis, filamento quam antherae ter longiore, 1 mm longo. 

 Flores foeminei in ramulis axillaribus, oppositi, subsessiles; peri- 

 gonio cylindrico, crasso; basi attenuato, extus rubescente intus 

 viridi, apice multis pilis fasciculatis praedito, fauce glandulis 

 8 contiguis cincto; lobis patentibus, triangularibus, acutis, intus 



