208 JOURNAL OF THE ARNOLD ARBORETUM [vol. i 



these two forms at all; he then proceeds to distinguish as var. Thunhergiana 

 one of the forms, his D, scahray which according to his opinion is D. scahra 



of Thunberg 

 Maximowicz 



This clearly shows that 



lented 



the case as shown above under D. scabra, and therefore it can hardly be 

 retained for his plant. Schneider later transferred Maximowicz's variety 

 to D, Sieboldiana, but it is certainly much more closely related to D. scahra 

 than to D, Sicboldiana. The Japanese botanists do not mention this form 



at all. 



In general appearance D, heterotricha resembles D. scahra^ but the hairs 



on the under side of the leaves of Z). heterotricha are very different; the 

 pubescence appears soft to the touch, as most of the hairs and particularly 

 those on the veins and velnlets have a central upright ray, while the lateral 

 rays are fewer than in Z). scahra and on the veins are often nearly or entirely 

 wanting; also the pubescence of the inflorescence is heteromorphus, the 

 well- developed central rays giving the impression that the stellate pubes- 

 cence was interspersed with long pilose hairs. The panicle itself appears 

 nearly cylindric on account of the short lower branches which are usually 

 only 3-flowcred. The flowers are somewhat smaller, the stamens exceed 

 the petals, and the longer filaments are indistinctly toothed or nearly 

 subulate. It is chiefly the difference in the pubescence which induces me 

 to consider this Deutzia a distinct species, as I have found the form of the 

 pubescence a very constant and reliable character in this genus. Deutzia 

 heterotricha seems to occur only in the province Shinano and Tschonoski's 

 specimen represents the type of the species; the specimens from other lo- 

 calities cited by Maximowicz may not belong here. Another closely re- 

 lated species is the incompletely known D. hebecarpa Nakai (in Matsumura, 

 Icon, ri Koisikav, i. 127, t, 64 [1913]) from the island of Oki which differs 

 according to the author's description and figure chiefly in the quite glabrous 

 branchlets, the 3-4-rayed hairs of the upper surface of the leaves and the 

 simple hairs of the lower surface, the pilose petioles and the pilose inflo- 

 rescence and fruit, no mention being made of stellate pubescence except 

 tliat of the upper surface of the leaves, 



Deutzia calycosa Rehder var. macropetala, var. nov. 



A typo recedit praesertim foliis subtus vix molliter pubesccntibus ob 

 pilos stellatos radio centrali instructus sparsiores, pilis praesertim versus 

 marglnem fere omnibus radio centrali destitutis, floribus majoribus petalis 

 ad 15 mm. longis et 11 mm. latis, pilis stellatis calycis radio centrali desti- 

 tutis. 



China. Yunnan: in silvis La-pa-ho, Tie-so, circa Pe-yen-tsin, Jun. 18, 

 1910, Simeon Ten (No. 195, frutex 3 m. altus, floribus rubro-albis). 



appears at the first 



pubesce 



lyx 



