ROSACE AE . — PRUNUS 199 



barbata, nervis utrinsecus 8-12, supra laete viriclis, subtus paullo v. 

 manifeste pallidior, demum papyracea. Involucrum ante anthesin 

 deciduum; pedunculi 1-2 cm. longi, glabri; racemi absque pedunculo 

 2-5 cm. longi, axis glaber; flores (3-)4-7, coaetanei foliis simul 3.5-6 

 cm. longis; bracteae 4-8, infima saepe sterili, rotundatae, 3-7 mm. 

 longae, denticulatae, dentibus glandula conica initio parva, demum 

 magna terminatis, pedicelli 12-22 mm. longi, glabri; cupula 4 mm. 

 longa lataque, glabra; sepala reflexa, triangularia, acutissima, 3 mm. 

 longa, glanduloso-ciliolata ciliis utrinsecus circiter 2-4, ceterum gla- 

 bra; petala rotundata, 6.5 mm. longa, 5.5 mm. lata, eroso-denticulata, 

 alba; stamina 31, petalis subaequilonga, ad 6 mm. longa; pistillum 

 10 mm. longum; stylus staminibus vix longior, basi pilis paucis obsitus. 

 Drupa globosa, circiter 10 mm. diam., rubra v. fere nigra; putamen 

 rotundatum 6-7:6:5 mm., valide reticulato-sulcatum et scrobiculatum 

 costis interdum baud anastomosantibus. 



Western Szech'uan: west and near Wen-ch'uan Hsien, woods, 

 alt. 2500 m., June and July 1908 (No. 904^); Sung-pan, woodlands, 

 alt. 2600-3000 m., August 1910 (No. 4013); Nan-ch'uan, summer 

 1891, A. von Rosthorn (Nos. 149, 540, sterile); without locality, summer 

 1891, A von Rosthorn (No. 622, sterile). 



This species differs from P. conadenia Koehne in the narrower leaves and the 

 globular more strongly furrowed and pitted stones. In No. 904** the fruit is described 

 on the label as dark red, and in No. 4013 as nearly black, but also in No. 4013 it ap- 

 pears to be dark red in the dried state. The really black fruits, as in. P. pleuroptera 

 Koehne, are intensively black in the dried specimens. 



Pninus macradenia Koehne, n. sp. 



Arbor 6-10-metralis; rami glaberrimi, hornotini demum castanei, 

 annotini fusco-cinerei v. cinerei; gemmae 2-2.5 mm. longae, ovatae, 

 glabrae. Stipulae ignotae; petioli 8-14 mm. longi, glabri, plus minus 

 purpurascentes; glandulae 1-2, laminae basi insertae; lamina e basi 

 acuta V. rotundata ovata v. ovato-elliptica, 4.5-6.5 cm. longa, 2.2- 

 3.5 cm. lata, subito caudata, simpliciter, media parte subduplicato- 

 serrata, dentibus brevibus latiuscule triangularibus, glandulam validam 

 fuscam triangularem gerentibus, supra laxiuscula strigulosa, subtus 

 undique breviter hirtella, sed in costa baud raro glabra, nervis utrin- 

 secus 6-12, supra laete viridis, subtus manifeste pallidior, adulta papy- 

 racea. Flores ignoti. Racemorum fructiferorum pedunculus 2-4 mm., 

 axis ipse 13-16 mm. longus; bracteae 3-4, rotundatae v. obovatae, 

 2-5 mm. longae, glanduloso-dentatae, glandulis inferioribus parvulis, 

 superioribus majoribus triangularibus; pedicelli 3-4, laxiuscule hir- 



