168 WILSON EXPEDITION TO CHINA 
Ho near Mon-kong Ting, alt. 2300-3300 m., June 1908 (No. 2169). 
Shensi: Tai-pei-shan, 1901, W. Purdom. 
In the absence of ripe fruits the affinity of this species remains doubtful. It 
seems to be most closely related to the black-fruited C. melanocarpa Loddiges, which 
differs chiefly in its broader and larger, differently shaped leaves, often narrowed 
at the base, sparingly hairy on the upper surface while young and with a looser 
whitish tomentum beneath. Specimens of the forms from the Altai mountains 
usually referred to C. melanocarpa resemble our species in their smaller leaves, 
which, however, are hairy on their upper surface while young, oval in outline and 
generally broadly cuneate at the base. Cotoneaster gracilis also shows some re- 
semblance to the red-fruited C. integerrima Medikus, which is easily distinguished 
by its larger acute or acutish leaves, smaller and shorter racemes, larger flowers 
and stouter branches. Cotoneaster Zabelii Schneider differs more widely in its 
densely villous calyx and the larger leaves, hairy on their upper surface at least 
while young. — The specimen from western Szech'uan (No. 2169) has smaller 
leaves than the type and fewer flowers in shorter racemes, while the specimens 
from Shensi are almost intermediate between the Hupeh and the Szech'uan 
specimens. 
Sect. 2. CHAENOPETALUM Koehne. 
Cotoneaster racemiflora K. Koch, Dendr. I. 170 (1869).— Schneider, 
Ill. Handb. Laubholzk. I. 754, fig. 424 e’-k (1906). 
Mespilus racemiflora Desfontaines, Cat. Hort. Paris, ed. 3, 409 (1829). 
Cot Font i Spach, Hist. Vég. II. 77. (1834). — Briot in Rev. Hort. 
1869, 33, t. 
Cotoneaster nummularia Fischer & Meyer in Ind. Sem. Hort. Petrop. I. 31. 
(1835). — Aitchison in Trans. Linn. Soc. Bot. III. 64, t. 9 (1888). 
Cotoneaster Fontanesii, a Desfontainii Regelin Act. Hort. Petrop. 11.312. (1873). 
Cotoneaster numularia, 8 racemiflora Wenzig in Linnaea, XX XVIII. 189 (1874). 
The type does not occur in China, but there are two well-marked varieties in 
Hupeh and western Szech'uan. 
Cotoneaster racemiflora, var. soongorica Schneider, IU. Handb. 
Laubholzk. I. 754, fig. 424 i (1906). 
Cotoneaster Nummularia Trautvetter in Bull. Soc. Nat. Mosc. XXXIII. pt. I. 
531 (Enum. Pl. Songor. Schrenk.) (1860). 
Cotoneaster nummularia, var. soongoricum [sic] Regel & Herder in Bull. Soc. 
Nat. Mosc. x . pt. II. 58 (Pl. Semenov. No. 381) (1866). 
ees , var. gorica Regel in Act. Hort. Petrop. II. 313 
Western Szech'uan: Tachien-lu, alt. 2600-3000 m., bush 2.5 m. 
tall, June and October 1908 (No. 1317); valley of Hsao-chin Ho near 
Monkong Ting, alt. 2300-3000 m., June 1908 (Nos. 2166, 2168; bush 
2-3 m. tall); Min Valley near Sung-pan Ting, alt. 2600 m., Septem- 
ber 1910 (No. 4015; bush 1-2 m. tall); without locality, alt. 3900 m., 
arid places, June 1904 (Veitch Exped. No. 3514; bush 2 m. tall). 
