ROSACE AE . — PRUNUS 205 



5 mm. diam., rubra; putamen oblongum, 7:4:3 mm., basi ac juxta 

 carinam planam costis 2-3 validiusculis exsculptum. 



Western Hupeh: Patung Hsien, alt. 1300-2000 m., June 1907 



(No. 47). 



Differs from all species of the sect. Phyllocerasus in its densely pubescent 

 cupula. 



Prunus Rehderiana Koehne, n. spec. 



Arbor 5-metralis ramosissima; ramuli novelli lanati v. villosi, 

 vetustiores glabri, cinerei. Stipulae lanceolatae v. anguste lineares, 

 5-7 mm. longae, glanduloso-fimbriatae glandulis oblongis; petioli 

 sub anthesi 3-10 mm. longi, supra laxe v. densiuscule villosi, glan- 

 dulis plerumque 1-2 laminae basi, rarius petioli apice insertis; lamina 

 e basi rotundata obovata, 2-4 cm. longa, 1.1-2.2 cm. lata, subito v. 

 caudato-acuminata, argute simpliciter v. vix hinc inde duplicato- 

 serrata dentibus acuminatis saepe incurvis, glandula minuta terminatis, 

 supra in costa villosa ceterum glabra, subtus in nervorum axillis bar- 

 bata ceterum glabra v. in nervis pilis singulis conspersa, nervis utrin- 

 secus 8-10, laete viridis, subtus vix pallidior. Involucrum ante anthesin 

 deciduum; pedunculus circiter 3 mm. longus, pilosiusculus; flores 

 1-2, umbellati, coaetanei foliis simul 2-3.5 cm. longis; bracteae 2, 

 rotundatae, 3-5 mm. longae, glanduloso-denticulatae glandulis cras- 

 siusculis depresso-conicis v. disciformibus, herbaceae; pedicelli 9-12 

 mm. longi, densiuscule crispulo-villosi; cupula 4 mm. longa lataque, 

 late breviter campanulata, ima basi pilosiuscula ceterum glabra; 

 sepala reflexa, late ovata acutiuscula, 3 mm. longa, fimbriolis glandu- 

 losis utrinsecus 3-5 obsita, glabra; petala rotundata, 7 mm. longa, 



6 mm. lata, apice eroso-denticulata; stamina 27, petalis aequilonga, 

 ad 7 mm. longa; pistillum 12 mm. longum, stylus staminibus sub- 

 longior, usque ad medium dense molliter villosus. Drupa ignota. 



Western Hupeh: Hsing-shan Hsien, woods, common, alt. 1300- 



1600 m., May 14, 1907 (No. 2831). 



' As the fruits are unknown, it is diflBcult to decide whether this species is suffi- 

 ciently distinct from the other species of this group or to which species it is most 

 closely related. It differs particularly from the allied species with similarly gla- 

 brous leaves in the short and copiously pubescent pedicels. 



Prunus litigiosa Schneider, var. abbreviata Koehne, n. var. 



Arbor 3-6-metralis; ramulus novellus basi pubescens. Petioli 

 glabri v. raro pilis paucis conspersi; folia sub anthesi jam ad 4 cm. 

 longa. Pedunculus 3-7 mm. longus, glaber v. parcissime pilosus; 



