ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION, m 



sessile, yellow to orange, J inch across. Sepals green ; linear, blunt, and terete 

 in upper half ; widening below to a broad base. Petals nearly twice the sepals, 

 linear- lanceolate, apiculate, yellow to orange, wide-spreading. Stamens spreading, 

 nearly equalling the petals, yellow, anthers ovate. Scales white, broader than 

 long. Carpels at first erect, spreading later, yellow, often becoming orange or 

 red, spreading widely in fruit. 



Flowers July. Hardy. 



Habitat. — Siberia, Mongolia, Manchuria, China, Japan. 



S. Maximowiczii Kegel is, according to Maximowicz {loc. cit.), whose 

 knowledge of the North Asiatic Sedums was unequalled, the form of 

 Aizoon found in cultivation in Japan — very tall, large-leaved, and 

 large-flowered. Recent Japanese writers agree in this view. 



5. Woodwardii N. E. Brown is undoubtedly referable to 5". Aizoon. 

 The type specimen in Kew Herbarium is poor, but by the kindness of 

 the late Mr. Robert Woodward, in whose garden the plant appeared 

 as a seedling, I received fine specimens taken from the original root. 

 These represented a rather broad-leaved form, lax from growing in 

 rich soil in half shade ; each of the special characters — such as the 

 rather obtuse dentition, obliquely obovate leaves, and very lax in- 

 florescence — on which the species was founded, has disappeared when 

 the plant has been grown under ordinary conditions in my garden, and 

 the plant as now growing differs in no way from ordinary 5. Aizoon. 

 {See Journ. o/Boi., 55, 215.) 



Several varieties of S. Aizoon have been described, based on differ- 

 ences in stem and leaf characters, such as var. latifolium Maximowicz, 

 "Flor. Amurensis," 115, and Regel, "Flor. Ussuriensis " 70, a small 

 branched form with very large leaves ; var. saxaiilis Nakai, " Flor. 

 Koreana," small and branched with narrow leaves ; and var. floribunda 

 Nakai loc. cit. , very tall and narrow-leaved. These may be of importance 

 locally as geographical forms, but in the garden a continuous range is 

 found, among which it is not possible to select any as outstanding and 

 worthy of varietal names in a botanical sense. My collection came 

 from some fifty different garden sources, ranging from Japan on the 

 east to Canada on the west. Among them the chief variations observed 

 were as follows : — 



(i) Habit. — Some very erect, some rather diffuse. 



(2) Branching. — A strong stem will often bear many axillary 

 branches, and any stem will branch if the growing point is injured, but 

 some forms were branched invariably. 



(3) Inflorescence. — Typically terminal, very compact, involucrate ; 

 but the cyme-branches may be lengthened, producing with the en- 

 larged leaf-like bracts a lax flat inflorescence 6 inches across ; or the 

 terminal flower-head, in conjunction with others borne on axillary 

 branches, may form a hemispherical inflorescence half a foot across. 



(4) Leaf -form. — OutUne from linear-lanceolate to broadly ovate 

 (see fig. 56), and dentition from obscure to bold, and from blunt to 

 acute. 



(5) Pigmentation. — From bright green in stem and leaf, clear yellow 

 in flower, and bright green in fruit, to dark red in stem, dark green in 



