ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 147 



A. Flowers White. 



(a) Sub-shrubs. 



Except for the Siberian 5. populifolium, which stands quite apart 



as regards growth-form from all other Eurasian Seduins, the species 



grouped here are Mexican; of these, Bourgaei, guadala^aranum and 



ariseum are closely allied to each other. 



^ xCfollowing white-flowered sub-shrubby species are m cultivation. 

 populifolium Pallas allantoides Rose 



^7 u^mdpv Bourgaet Hemsley 



retusum Hemsley & w^+c 



Adoiphi n^met ■ guadala^aranum S.V^^is. 



frutescens Rose g^^^^«^ ^'^'S'' 



58. Sedum populifolium PaUas (fig. 78)- 

 S. populifolium Pallas. Reise, 3. 730. tab. O. fig. 1. 1776. Masters in 

 Card. Chron.. 1878, ii. 463- 

 lLi.usTRATioNS.-Pallas. loc. at. De Candolle " Plantes Grasses." tab. no. 

 BotMagXi^^^- Revue Horticole.iSs7.^50,H-^- , , ^ , 



A most distinct species, standing quite apart in its slender, bushy 

 growtrand long-stem'med poplar-like leaves, which fall m au umn. 



Desck:pt.ok.-A dedduous. glabrous^ sub-shr.b, ^. J f^^^^ 

 fibrous. Stem erect, ^Ifder woody ^";^^^^^^;^f,^?ked ; petiole slender, i inch 

 purple bark. Leaves alternate, green f^*; ^^7 ^.^arseiy and irregularly toothed 

 Fong-. lamina ovate, ^°^date acute finch on^^coar^^^^^^ eor^^mbose cymes, 



throughout. Inflorescences lax, °Vw;!'^'^l^pink or white, i to | inch across, 

 B«ds ovoid, blunt t^PP^^^P^^;,^- .^ineltoTd Tt^e petals. Petals spreading. 

 smelUng of hawthorn. Stpals ^reen. de'^°^^^ * ^ ^^tals. filaments pinkish. 

 S^rld-pu^Te. ^SVlI^tt'^ua^t^Sher Jger than broad. CarpeU 

 white erect, shorter than the stamens. 

 Flowers August. 

 Habitat.— Siberia. favourite It is one 



yo/wm— poplar-leaved. 



59 Sedum retusum Hemsley (fig. 79)- 



"Biol. Centr. Amer.,Bot.. l, 39°- 



A distinct, erect sub shn.. a |oot o. s ^^.^f^^^Z^Z 

 spathulate leaves deeply notched at 'he top jut „ 



„Lh is absent) and its "7^^ w^^^^^^^^ f ^^^ ,^ J, p„„t 



::r:ra:!rdX:^rwrwr those o< s. «..«. - .the. 



bell-shaped and have blunt petals. 



