150 THE JOURNAL OF BOTANY 



have flowers. The apex and base of the stem are missing. The 

 branches are more scabrid than in my plant, but in other characters 

 it agrees fairly well. Chifu lies only 50 miles from Wei-hai-Wei, so 

 the present known range of the plant is a small part of the Shan-tung 

 promontory. The Aizoon group to which it belongs has its geo- 

 graphical centre in this portion of Asia. 



Maxiraowicz divided the closely allied and variable species of his 

 Series Aizoonta into two groups : — S. hyhrulum on the one hand, 

 with semi-erect carpels, and »S'. Aizoon, S. Selskyanmn, S. jllidden- 

 dorjfianum, and S. kamtscJioficttm on the other, with patent fruiting 

 carpels. Other good characters which sepai-ate S. hyhridum from its 

 allies hitherto described are its sepals not splayed out into a wide 

 base, its production of barren stems, and its creeping habit. S.Jlori- 

 ferum, in its leaves and flowers, and particularly in its sepals, comes 

 very near S. Jii/hrid?.i»i, but its growth form is c[uite different, and 

 approaches that of kamischaticitm, differing only in its production of 

 many axillary branches, which give the plant a distinctive bushy 

 appearance. Elsewhere in the Aizoon group this character is found, 

 though to a less extent, in S. Yaheanum Makino, a recently published 

 Japanese species, which is described as having " stems often provided 

 with a few sterile branches at the middle portion." 



Sedum hirsutum All. var. BjETTCUM Rouy in Bull. Soc. Bot. de 

 France, xxxiv. 44-1, 1887 (as subspecies). " Differe du IS. hirsntvm 

 par son port plus robuste, la villosite glanduleuse de toute la plante, 

 les feuilles relativenient plus allongees, les fleurs du double plus 

 grandes, a petales ovales-aristes (et non oblongs-lanceoles arlstes), 

 visiblement multinerves, les carpelles plus courts, plus larges, et moins 

 longuement acumines." 



Under this form, which comes from the Sierra de Palma near 

 Gibraltar, may be placed a plant collected by Miss Luckham in 

 southern Spain (locally uncertain) a few years ago, and sent to 

 Wisley. It agrees with Rouy's description in all points except that 

 the flowers are 1| times, not twice as large (in diameter), and are not 

 visibly multinerved. In appearance it is very distinct, on account of 

 its large size and pale green colour. I have grown it for several 

 years. 



In this Journal for 1914 (p. 12) Major Wolley-Dod has combined 

 Rouy's plant with Umhiliciis Winl-leri Willkonun in Acta Soc. Bot. 

 Germ. 1883, 288 (from S. Roque, Gibraltar). But the latter plant, 

 which is excellently figured and described by Willkomm in Illustr. 

 rior. Hisp. i. pi. 74 a, p. 108, is clearly distinct at least from 

 Miss Luekhanf s plant. It has ciliate j^etals, with many green veins, 

 adnate in the lower two-thirds (instead of non-ciliate petals with a 

 red median vein and free save at the very base), drooping fruit 

 pedicels (instead of erect), and glaucous foliage (instead of green) ; 

 also it seems from the figure to be a much stouter plant without 

 the runner-like branches characteristic of strong plants of hirsutum 

 and its varieties. The multinerved character of the petals in Rouy's 

 plant is a step towards WiiiMeri, and in the absence of this character 



