450 WILSON EXPEDITION TO CHINA 



apicalibus trientem staminum aequantibus. Fructus maturus desi- 

 deratur. 



Western Szech'uan: without precise locality, alt. 2000-2700 m., 

 July, 1904 (Veitch Exped. No. 3557). 



Spiraea Schneideriana seems most closely related to S. ovalis Relider which differs 

 from it in its terete branchlets, glabrous inflorescence and villose carpels; it is also 

 closely related to S. Veitchii Hemsley which is easily distinguished by the terete 

 branchlets, longer and larger leaves, puberulous beneath, more compound inflores- 

 cence, and by its smaller flowers. Named in compliment to Mr. Camillo Schneider 

 (see p. 133 under Lonicera Schneideriana). 



Spiraea Schneideriana, var. amphidoxa Rehder, n. var. 



A typo recedit inflorescentia glabra v. fere glabra, minus composita, 

 foliis base plerumque late cuneatis, ramulis sparsius villosulis v. 

 glabrescentibus. 



Western Szech'uan: Wa-shan, alt. 2700-3800 m., July 1903 

 (Veitch Exped. No. 3557% type) ; Monkong Ting, ascent of Hsao-chin- 

 ho, alt. 2300-3000 m., June 1908 (No. 2763; bush, 2-4 m. high). 



The specimen from Mongkong Ting differs from the type of this variety in the 

 somewhat larger flowers with a lobed disk and broader petals, perfectly glabrous 

 leaves, finely ciUate in No. 3557% and in the nearly glabrous branchlets. In its 

 glabrous inflorescence, the variety is still closer to »S. ovalis than the type, but can 

 be easily distinguished from it by the angular branchlets, narrower leaves and green 

 calyx. In general appearance and in most characters, particularly in the foliage, 

 it is remarkably similar to S. myrtilloides Rehder which has simple umbel-like 

 racemes, and it might possibly be considered a variety with a compound inflores- 

 cence of that species of which the lower pedicels sometimes bear two flowers. 



Spiraea canescens G. Don, var. oblanceolata Rehder, n. var. 



A typo recedit foliis ramulorum fioriferorum et fasciculatis et 

 basilibus turionum obovato-oblongis v. oblanceolatis integris glau- 

 cescentibus glabris margine sparse ciliato excepto v. interdum subtus 

 ad venas sparse pilosis, eis turionum plerumque obovatis integris v. 

 apice paucidentatis magis pubescentibus, inflorescentia et calyce brev- 

 iter et sparsim pilosis fere ut in varietate glaucophylla Franchet, cui 

 haec varietas simillima foliis oblanceolatis exceptis. 



Western Szech'uan: Monkong Ting, descent of Hsao-chin-ho, 

 alt. 2300-2700 m., June 1900 (No. 2762; bush 2-3 m. high). 



This variety is very close to *S. canescens, var. glaucophylla Franchet {S. canescens, 

 var. sulphurea Batalin) which differs only in its obovate leaves and slightly less 

 pubescent calyx. The pubescence of the calyx is apparently variable; Wilson's 

 No. 3551 of the Veitch Expedition from Tachien-lu, which I refer to S. canescens, 

 var. glaucophylla, differs from the type of var. sulphurea collected in nearly the same 

 locality, in the more densely pubescent calyx and capsules. The yellow color 



