ROSACEAE. — COTONEASTER 167 
thickets, alt. 1600 m., June 1907 (No. 2174; bush 2 m. tall, flowers 
pink); Hsing-shan Hsien, thickets, alt. 2000 m., June 1910 (No. 
4542; bush 1-2 m. tall, flowers pink); without locality, June 1900 
(Veitch Exped. No. 1167 and seed number 623); without locality, 
A. Henry (Nos. 5463, 7918). Shensi: north-west of Han-chung 
Hsien, May 1910, W. Purdom (No. 360); Tai-pei-shan, 1910, W. 
Purdom (no number). 
This is the common Cotoneaster of the thickets in western Hupeh. The oval- 
elliptic leaves are usually rounded and emarginate or mucronulate but occasionally 
acute; often all forms arefound on the same shoot. The Hupeh specimens appear 
to have rather shorter, more prominently veined leaves than those from Shensi, 
the type locality. Purdom's specimen from the Tai-pei-shan has the corymbs 
larger and more numerous flowered and larger leaves than any of the other speci- 
E we have seen. In young plants the leaves are mucronulate and inclined to 
acute. 
Cotoneaster gracilis Rehder & Wilson, n. sp. 
Frutex 1-3-metralis; ramuli hornotini dense accumbenti-villosuli, 
annotini glabri, fusco-purpurei. Folia decidua, ovali-ovata v. oblongo- 
ovata, rarius ovali-oblonga, obtusa breviter mucronulata, interdum 
acutiuscula, rarissime emarginata, basi rotundata, 10-25, plerumque 
15-20 mm. longa et 8-17, plerumque 10-12 mm. lata, supra glabra 
minute rugulosa, laete viridia, subtus albida, dense papillosa, reticulo 
venularum impresso et dense tomento cinereo subaccumbenti-villoso 
obtecta, utrinsecus nervis 3-4 ut costa supra leviter impressis, subtus 
elevatis; petioli tomentosi, 2-3 mm. longi; stipulae subulatae, rube- 
Scentes, pubescentes, membranaceae, circiter 2 mm. longae. Corymbus 
laxus, 3-6-florus, ramulis lateralibus brevibus v. brevissimis plerumque 
3-foliatis insidens, bracteis bracteolisque membranaceis subulatis ru- 
bescentibus 1.5-2 mm. longis instructus; pedunculus 0-5 mm. longus, 
Sparse pubescens; pedicelli 2-6 mm. longi, graciles glabrescentes; 
calyx glaber, rubescens, dentes late ovati, obtusi v. acutiusculi, inter- 
dum mucronulati, 2 mm. longi ac lati, sursum sparse pilosi, margine 
Scarioso; petala subrotundata rosea, 2.5-3 mm. longa et 2.5 mm. lata, 
erecta, basi brevissime unguiculata; stamina 20, sepalis subaequilonga 
v. paullo breviora; carpidia 2 (semper?) apice dense villosa. Fructus 
(immaturus) obovoideus, ad 5 mm. longus, apice truncatus; pyrenae 
4.5 mm. longae,3.5 mm. latae, dorso leviter irregulariter foveolatae, 
ventre stylum paullo infra apicem gerentes, hypostylio dimidium v. 
fere dimidium dorsum occupante sparse villosulo v. glabro. 
Western Hupeh: Hsing-shan Hsien, thickets, alt. 1700 m., June 
1907 (No. 2176, type). Western Szech'uan: Valley of Hsao-chin 
