158 WILSON EXPEDITION TO CHINA 
This species is most nearly related to C. Simonsii Baker, from which it is readily 
distinguished by its smaller leaves, constantly fewer flowered racemes, less acu- 
minate sepals, and by its ovoid darker red fruits; in habit and general appearance 
the two species are very distinct. It seems also related to C. mucronata Franchet 
from Yunnan, which differs chiefly in the lax 2—4-flowered racemes and more 
densely hairy leaves. No. 2167 from Szech’uan has the leaves, particularly those 
of the shoots, somewhat larger than the type and often shortly acuminate. 
Cotoneaster acutifolia Turczaninow in Bull. Soc. Nat. Mosc. V. 190 
(1832). — Schneider, Ill. Handb. Laubholzk. Y. 750, fig. 421 a (1906). 
Cot t tifolia, var. peki is Koehne in Deutsche Dendr. 225 (1893). 
Cotoneaster pekinensis Zabel in Mitt. Deutsche Dendr. Ges. VII. 37 (1898). 
Originally described from Chinese Mongolia, this plant was introduced from 
the mountains near Peking by Dr. Bretschneider into the Arnold Arboretum in 
1883. The typical form is absent from central and western China. This species 
is not to be confounded with C. acutifolia Lindley which is C. lucida Schlechtendal, a 
species from the Altai mountains not yet reported from China. 
Cotoneaster acutifolia, var. villosula Rehder & Wilson, n. var. 
Cotoneaster acuminata Pritzel in Bot. Jahrb. XXIX. 385 (pro parte, non 
Lindley) (1900). 
Frutex 2-4-metralis ramis divaricatis; ramuli hornotini flavido- 
villoso-strigillosi, annotini glabrescentes v. glabri, fusco-purpurei; 
gemmae tomento flavido-cinereo obtectae. Folia decidua, ovata v. 
oblongo-ovata, acuta v. acuminata, basi rotundata, rarius late cuneata, 
3-6 cm. longa et 1.5-4 cm. lata, supra obscure viridia, initio sparse 
villoso-pilosa, demum glabra v. fere glabra, subtus laxe v. interdum 
densius subaecumbenti-villosa praesertim ad venas, utrinsecus nervis 
4-6 ut costa supra leviter impressis subtus elevatis; petioli villosi, 
3-5 mm. longi. Racemi laxi, 3-5-flori, bracteis bracteolisque subu- 
latis ciliatis 3-4 mm. longis deciduis instructi, pedicelli cum pedunculo 
circiter 1 em. longi, subaccumbenti-villosi; calycis tubus turbinatus, 
villoso-tomentosus, 4-5 mm. diam., dentes late triangulares, mucro- 
nulati, 1.5 mm. longi et 2 mm. lati, purpurascentes, dorso fere glabra 
margine dense villosuli; petala orbiculari-obovata, concava, erecta, 
alba, roseo suffusa, 44.5 mm. longa, 3 mm. lata, breviter unguiculata; 
stamina 20, sepalis longiora; carpidia 2, rarius 3, apice villosa, stylis 
quam stamina brevioribus. Fructus pyriformis, 8-10 mm. longus, 
apice depresso villosulus, niger; pyrenae 2, rarius 3, trigono-obovoideae, 
5-6 mm. longae et 4—4.5 latae, ventrestylum tertiam partem infra apicem 
gerentes, nitidae, dorso irregulariter leviter suleatae et rugulosae, hypo- 
stylio tertiam v. vix tertiam partem dorsi occupante nitido glabro v. 
sparse villosulo. 
