ROSACE AE. — COTONE ASTER 175 



Western Hupeh: A.Henry (No. 5752, type); Hsing-shan Hsien 

 alt. 1600 m., thickets, July 1907 (No. 2182; bush 2-4 m. tall); Patung 

 Hsien, alt. 1600-2000 m., woodlands, June 1907 (No. 2183; bush 2-2.5 

 m. tall). Eastern Szech'uan: South Wushan, mountains, 1900 

 (Veitch Exped. No. 1384, flowers and ripe fruit; bush 3 m.). 



In it3 much larger leaves, pubescent on both surfaces and of softer texture, in its 

 more densely villose branches and ovoid fruits, this Hupeh plant differs distinctly 

 from Cotoneasler salicifolia Franchet and its varieties. It seems better to regard 

 it as a distinct species rather than an extreme form of that species. 



We have given a complete description of this species, since Schneider, when he 

 established it as a variety of Cotoneasler rugosa Pritzel, gave only a few distinguish- 

 ing characters. In Fedde's Repertorium cited above, Schneider refers this plant 

 to the typical Cotoneasler salicifolia Franchet, a view which to us is quite untenable. 



On No. 1384 (Veitch Exped.) Schneider (1. c.) based his Cotoneasler rugosa, var. 

 Pritzelii. The specimen in the Herbarium of the Arnold Arboretum bearing that 

 number is typical Cotoneasler Henrijana and does not in the least agree with Schnei- 

 der's description. The only specimen we have seen which shows any approach to 

 Schneider's var. Pritzelii is from a plant cultivated in the Veitchian nurseries and 

 distributed under the name of Cotoneasler rugosa, var. Henryi. 



Cotoneaster rhytidophylla Rehder & Wilson, n. sp. 



Frutex 2-metralis ramis robustis; ramuli hornotini tomento ad- 

 presse villoso lanuginoso flavescente dense vestiti, annotini sparse 

 villosi, obscure fusci v. griseo-fusci. Folia coriacea, partim persis- 

 tentia, elliptico-oblonga v. ovato-oblonga v. oblongo-lanceolata, 3-5.5, 

 plerumque 4-5 cm, longa et 1-2 cm. lata, acuminata, basi attenuata, 

 margine revoluta, supra luteo-viridia manifeste rugosa, initio sparse 

 pilosa, demum glabrescentia et subnitentia, subtus dense tomento 

 lanuginoso-villoso flavescente obtecta, reticulata, nervis utrinsecus 

 5-8 supra valde impressis, subtus elevatis; petioli robusti, 3-5 mm. 

 longi, dense flavo-tomentosi; stipulae membranaceae, subulatae, 

 sparse villosae, rubescentes, deciduae. Fructus immaturus, auran- 

 tiaco-ruber, pyriformis, 6 mm. longus et 4 mm. diam., 5-12 in corymbis 

 densis 2.5-3 cm. diam. et 1.5-2 cm. longis, pedicellis brevissimis ut 

 pedunculi dense flavescenti-villosis ; pyrenae 3-4, triangulari-obo- 

 voideae, 5-6 mm. longae et 3-3.5 mm. diam., ventre carinatae, stylum 

 in apice v. paullo infra gerentes, dorso vix sulcatae, hypostylio circiter 

 trientem dorsi occupante viUosulo. 



Western Szech'uan: Wa-wu-shan, Hung-ya Hsien, on cliffs, 



alt. 1300 m., September 1908 (No. 2184). 



A strikingly distinct species, most nearly related to C. salicifolia Franchet, from 

 which it is easily distinguished by its strongly wrinkled leaves densely clothed with 

 thick yellowish tomentum beneath, by the similar tomentum of the branchlets and 

 by the pyriform fruit with 3 or 4 stones. 



