270 WILSON EXPEDITION TO CHINA 



Prunus tomentosa, var. breviflora Koehne, n. var. 



Rami etiam triennes tomentosi, cortice demiun plus minus rimoso. Flores coae- 

 tanei, foliis paullo post anthesin 1.5-2.5 cm. longis; pedicelli 2 mm. longi, tomentosi 

 cupula 3 mm. longa, breviter campanulata, extus glabra, intus basi excepta pilosa 

 eepala 2 mm. longa, extus pilosa; petala ignota; stamina 22, ad 5 mm. longa 

 ovarium inde a basi pilosum, pilis infimis retrorsum versis. 



Northern Shensi: Quantou-shan, May 5, 1898, G. Giraldi (No. 5295, mixed 

 with Lindera spec). 



Prunus tomentosa, var. trichocarpa (Bunge) Koehne, n. var. 



Prunus trichocarpa Bunge in Mem. £tr. Acad. Sci. St. Petersbourg, II. 96 

 (Enum. PI. Chin. Bor.) (1833). 



Rami etiam triennes tomentosi. Flores subpraecoces, foliis simul vix e gemma 

 exsertis; pedicelli 1 mm. longi, pubescentes; cupula 5.5 mm. longa, tubulosa, 

 dense pubescens, intus basi excepta dense pilosa; sepala ad 3 mm. longa, extua 

 pilosa; petala 7.5 mm. longa, 4.5 mm. lata; stamina 23, ad 4 mm. longa; ovarium 

 inde a triente circiter inferiore pilosum. 



Northern China: A. Bunge. 



Prunus tomentosa, var. tsuluensis Koehne, n. var. 



Rami etiam triennes tomentosi. Cupula 5 mm. longa, crasse tubulosa, extus 

 dense puberulenta; sepala 2.5 mm. longa, extus pilosa; pedicelli brevissimi; petala 

 ignota; stamina 19, ad 5.5 mm. longa. Fructus juvenilis inde a basi pilosus. 



Northern Shensi: Tsulu, May 4, 1897, G. Giraldi (No. 5295). 



Prunus tomentosa, var. heteromera Koehne, n. var. 



Rami annotini superne laxiuscule tomentosi v. basi puberulenti, triennes cor- 

 tice rimoso. Flores praecoces foliis simul parum e gemma exsertis, 5-8-meri; 

 pedicelli 1 mm. longi, puberuli; cupula obconica, subangusta v. sursum manifeste 

 dilatata, 4-5 mm. longa, glabra, intus inde a medio laxe pilosa; sepala ovata, 2.5 

 mm. longa, argute glanduloso-serrulata; petala 6.5 mm. longa 5. mm. lata; stamina 

 (in flore 8-mero) 27, ad 4.3 mm. longa; ovarium inde a medio pilosum. 



Szech'uan: near Tachien-lu, April 23, 1893, G. N. Potanin. 



110. Prunus Batalinii (Schneider) Koehne, n. sp. 



Prunus tomentosa, var. ? Batalinii Schneider in Fedde, Rep. Nov. Sp. I. 52 

 (1905). 



Rami ab initio glaberrimi v. vix pulverulenti, annotini cortice argenteo tenui 

 secedente intense castanei nitidi, lenticeUis magnis irregulariter sparsis. Stipulae 

 petiolo multo longiores, angustissime lineares, interdum basi pectinato-pinnatae, 

 glanduloso-fimbriata; petioli brevissimi, dense tomentosi; lamina rhombeo- 

 obovata, sub anthesi ad 1.7 cm. longa, 1 cm. lata, acuta v. obtusa, serrata, supra 

 dense sericeo-villosa, subtus densissime villoso-tomentosa; involucra 2 mm. longa, 

 1-flora; flores coaetanei; pedicelli 4-5.5 mm. longi, glabri; cupula 5 mm. longa, 

 crasse campanulata, extus ima basi puberulenta ceterum glabra, intus basi excepta 

 pilosiuscula; sepala late ovata, 2.5 mm. longa, dense breviter glanduloso-fimbri- 

 olata, extus glabra v. subglabra; petala obovato-rotundata, 9.5 mm. longa, 7 mm. 

 lata; stamina 20, ad 6 mm. longa; ovariima circiter inde a medio pilosum. 



Szech'uan; near Tachien-lu, April 23, 1893, G. N. Potanin. 



This species seems to differ sufficiently from P. tomentosa Thunberg in its gla- 

 brous branchlets. 



