EOS ACE AE. PRUNUS 65 



Prunus rufomicans Koehne, n. sp. 



Arbor 20-30-metralis trunco 0.5-0.8 in diam.; ramuli vetustiores 

 intense fusci, glabri, juniores fusci, glabri. Foliorum stipulae ignotae; 

 glandulae rarius petiolo, saepius 1-2 laminae basi insidentes, crassae; 

 petioli in ramis fertilibus 5-10 mm., in sterilibus 12-14 mm. longi, 

 glabri v. parce hirtelli; lamina e basi rotundata v. late cuneata in 

 ramis fertilibus lanceolata v. oblongo-lanceolata (4.5-6 cm.: 1.5-2 

 cm.), in sterilibus late ovato-elliptica v. obovata (9-10 cm.: 4.5-5.8 

 cm.), subacuminata, argute dense v. subremote serrulata, supra glabra, 

 subtus tomento sericeo paginam inferiorum perfecte abscondente 

 densissimo intense rufo-ferrugineo submicante obtecta, supra venis 

 impressis reticulato-rugosa, subtus nervis primariis valide prominen- 

 tibus, subtus (sub microscopio) inter stomata vix papillosa, sed sto- 

 mata papillis arete confertis circumvallata fere abscondita. Ra- 

 cemi fructiferi circ. 12 cm. longi, glabri; pedicelli 3-4 mm. longi, ut 

 axis insigniter incrassati pallideque lenticellati; cupulae basis per- 

 sistens, intus glaberrima. Fructus subglobosus, circ. 10 mm. diam.; 

 putamen 9 mm. longum, 7 mm. diam., ovatum, acutum, obscure cari- 

 natum, laevissimum, durum. 



Western Szech'uan: Mupin, woods, alt. 1500-1600 m., October 

 1908 (No. 1078). 



Prunus brachypoda Batalin in Act. Hort. Petrop. XII. 166 (1892); 

 in Gartenfl. XLII. 330 (1893). 



Padus brachypoda C. K. Schneider in Fedde, Rep. Nov. Sp. I. 69 (1905); 

 III. Handb. Laubholzk. I. 638 (1906.) (excl. var. puligera quae speciem pro- 

 priam sistit). 



The varieties of this species may be described as their characters are partly 

 rather uncertain. 



Prunus brachypoda, var. pseudossiori Koehne, n. var. 



Arbor 5-20-metralis trunco 20-60 cm. diam.; ramuli juveniles 

 glabri v. raro pulverulento-puberuli. Petioli 11^0 mm. longi, glabri, 

 semper fere biglandulosi; lamina e basi manifeste cordata v. in ramulis 

 floralibus rotundata anguste v. late oblonga, ovato-oblonga, obovato- 

 oblonga (3-12 cm. longa, 0.8-5.5 cm. lata), longiuscule argute acu- 

 minata, argutissime serrata dentibus angustis tenuiter acuminatis 

 longiusculis (sed minoribus quam in P. ssiori), porrectis v. subincurvis, 

 subtus in nervorum axillis barbata ceterum glabra, intermixtis saepe 

 foliis omnino glabris, subtus parum pallidior quam supra reticulo 

 tenerrimo intensius colorato, subtus nunc manifeste nunc baud pa- 



