266 WILSON EXPEDITION TO CHINA 



Prunus japonica, a japonica Maximowicz in Bull. Soc. Nat. Mosc. LIV. 



12 (1879), sed exemplaria ab auctore ipso determinata pro parte ad P. glandu- 



losam pertinent. 

 Prunus japonica typica Matsumura in Tokyo Bot. Mag. XIV. 135 (1900), an 



hue pertinet? 



CONSPECTUS FORMARUM 



Floras simplices. Ovarium 1. 



Folia brevius latiusque acuminata, dentes primariae breviores obtusiores, baud 

 exacte triangulares. Rami minus graciles, erecti, virgati. var. eujaponica. 



Folia adulta subtus glabra f . Fauriei. 



Folia adulta subtus in costa ac plerumque etiam in nervis hirtella. f. Oldhamii. 

 Folia longius angustiusque caudata, dentes primariae longiores, acutiores, exacte 

 triangulares. Rami expansi, ramuli gracillimi, subdeflexi. var. gracillima. 

 Floras pallide rosei v. carneo-afflati v. albi. 



Folia adulta subtus glabra. Floras pallide rosei f. Thunbergii. 



Folia adulta subtus in costa nervisque breviter hirtella. 



Petala majora, carneo-afflata f. Engleri. 



Petala minora, alba f. minor. 



Flores intense rosei. (Foliormn indumentum mihi ignotum) . . f . sphaerica. 

 Floras semipleni, petalis staminibusque numerosis. Ovaria semper fere 2. 



var. Kerii. 



Prunus japonica, var. eujaponica Koehne, n. var. 

 Rami ramulique erecti virgati, sat graciles. Folia e basi rotundata v. vix sub- 

 cordata ovata, aciuninata acumine sat brevi latoqua, obtuso, dentes primariae 

 breviusculaa, obtusaa, baud exacte triangulares. Floras simplices. Ovarium 1. 

 Forma Fauriei Koehne, n. f. 

 Folia adulta subtus glabra. Pedicelli fructifari l-3ni, 4-10 mm. longi. Putamen 

 6.6:4.8:4.3 mm., carina 3 mm. lata. 



Japan: Buerger (in the Rijks-Herbarium, Leyden, as P. japonica); U. Faurie 

 (No. 3158). 



Forma Oldhamii Koehne, n. f. 

 FoUa adulta subtus in costa ac planmaque etiam in nervis breviter hirtella. Pedi- 

 celli floriferi ac fructiferi 7-10 mm. longi. Stylus basi villosus. Putamen 7.5:- 

 5.5:5 mm. v. 8:5.5:5.5 mm., carina 2-3 mm. lata. 



Hupah: A. Henry (No. 3598 A). Japan: J. J. Rein; Nagasaki, 1862, R. 

 Oldham (No. 200). 



Prunus japonica, var. gracillima Koehne, n. var. 

 Rami expansi, ramuli gracillimi, subdeflexi. Folia e basi cordata v. rarius rotun- 

 data ovata, longe angusteque caudata cauda acuta v. obtusiuscula, dentes primariae 

 longiores, acutiores, fere exacte triangulares. Flores simplices. Ovariiun 1. 



It is probable that this variety will prove to be a distinct species. 



Forma Thunbergii Koehne, n. comb. 

 Prunus japonica, var. Thunbergii Koehne in Fedde, Rep. Nov. Sp. VIII. 23 

 (1910). 

 FoUa adulta subtus glabra. PedicelU 4 mm. longi; petala 5 nam. longa, rosea; 

 ^stamina ad 3.5 mm. longa; stylus basi parce pilosus. 



Cultivated in the Spath Arboretum near Berlin, received from St. Petersburg. 



Forma Engleri Koehne, n. comb. 

 Prunus japonica, var. Engleri Koehne, I. c. 

 Folia adulta subtus in costa nervisque breviter hirtella. Pedicelli plerumque 



