218 JOURNAL OF THE 



[vol, III 



interioribus accrescentibus. Folia ambitu ovata vel late ovata, 3-lobata, 

 raro minoribus indivisis immixtis, basi cordata, minora ovata lobis 

 brevissimis acutis et 6-10 cm. longa et 4-7 cm. lata, majora late ovata 

 lobis longioribus acuminatis interdum lobis basalibus parvis instructa et 

 8-14 cm. longa et 7 13 cm. lata, lobo medio triangulari-ovato longe 

 acuminata, lobis lateralibus circa medium divergentibus brevissimis acutis 

 vel latissime ovatis acuminatis et interdum ad 3 cm. longis, toto margine 

 inacqualiter et dupliciter serrata dentibus latis brevibus mucronulatis, 

 supra laete viridia, glabra, subtus basin versus ad venas initio ut petioli 

 tomento ferrugineo lanuginoso caduco vestita, mox glabra; petioli graciles, 

 2.5-6 cm. longi; flores (hermaphroditi tantum visi) in raccmis 15-20-floris 

 cum pedunculo circiter 1 cm. longo 4- (5 cm. longis glabris; pedicelli 2-4 

 mm. longi; sepala oblonga, 4 mm. longa et 1.5 mm. lata, obtusa; petala 

 sepalis subaequilonga, obovata; stamina 8, sepala dirnidia aequantia, 

 antheris ovalibus 1.25 longis quam filamenta paullo longioribus; ovarium 

 leviter ferrugineo-puhescens, mox glabrescens; stylus brevis, vix 1 mm. 

 longus, stigmatibus recurvis multo longioribus. Fructus in racemis 

 densis pendentibus; pedicelli 3-6 mm. longis; samarae 1.6-2.2 cm. longae, 

 fere horizontals, alis leviter sursum curvatis loculo planiusculo circiter 

 duplo longoribus. 



China. Ho nan: Teng Feng Hsion, Yu Tai Shan, Erh Tsu an, alt. 800 m., 

 J. Hers, No. 219 (type) April 23, 11)10; Sunghsien, Sankuanmiao, alt. 1200 m., 

 J. Hers, No. 533 (co-type; immature fruits); May 24, 1919; Lushish, Lao kiun 

 Shan, alt. 200 m., ./. Hers, No. 1169, September 21, 1919; Tsi Yuan Hsien, Tumi 

 Ian slum, /.//era, No. 1739 (sterile), September 21, 1921. Chili: without locality, 

 Pere Chanel, 1919. Northern Shensi: Alt. Kiu-tou-san, G. Giraldi, July 14, 

 1897. North Central China: Mt. Kian-san, Rev. Hugh, 1897; "Thui-kio- 



tsuen,' Mt. Kan-y-san" and Mt. Ngo-san, Kev. #^/?, 1899. Northern Hupeh 

 "Ou-tan-scian," alt. 2050 m. C. Silvestri, No. 1370, September 1907; "Monte 

 Kian-scian," alt. 2000 m., C. Silvestri, No. 1371, September 1907. 



This new species belongs to the section Macranthae Pax and is closely 

 related to A. David ii Franch. and A. laxiflorum Pax. The first species is 

 easily distinguished from it by the undivided, generally oblong-obovate 

 leaves rounded or subcordate at the base and more densely rufous-pubes- 

 cent beneath and on 'the petioles when young, and in the usually larger 

 fruits on slenderer pedicels. The second species, A. laxiflorum Pax, 

 differs from it chiefly in the caudate-acuminate, more closely and finely 

 serrate leaves with acuminate teeth, glaucescent and glabrous beneath 

 even when young and in the purplish and bloomy branchlets. Specimens 

 of A. Hersiivnth larger more prominently lobed leaves have some resem- 

 blance to A . tegmentosumMaxim., but the leaves of that species are general- 

 ly larger and broader with larger lateral lobes and a shorter middle lobe 

 more sharply and doubly serrate with acuminulate teeth and glabrous 

 even when young and the anthers are suborbicular. 



This new Maple is named in honor of Mr. Joseph Hers to whom the 

 Arboretum is indebted for extensive and interesting collections and seeds 

 of Chinese woody plant chiefly from the province of Ilonan, a region 



