476 WILSON EXPEDITION TO CHINA 
shan, woodlands, alt. 2300-9000 m., October 1908 (No. 864); 
without locality, 1890, A. Henry (No. 8975). 
The smallest leaved of all the species of Sorbus. The greatest contrast to it is 
found in S. Sargentiana Koehne which has the leaves up to 28 em. and the leaflets 
up to 13.5 em. long. 
SORBORUM CHINENSIUM CONSPECTUS ANALYTICUS. 
Though I have studied almost all the Asiatic species of Sorbus in order to under- 
stand the Chinese species, and though I know also the European and North 
American species, I find it impossible to divide the genus into well characterized 
sections. There are, however, groups of allied species which stand out more or 
less clearly, but I have not succeeded in characterizing these groups distinctly or 
in making them include other than Chinese species, because the characters are too 
variously distributed, and of many species important characters are still unknown 
owing to the want of sufficient material. To arrange, however, at least for the 
present paper, the Chinese species in a way to indicate their affinities, I have dis- 
tinguished certain groups without naming them. To give them now definite names 
would be unwise, as this would seem to indicate that species other than Chinese 
could be included in the arrangement without changing the characterization of 
the groups. This, however, is not possible. 
Stipulae saltem supremae intra inflorescentiae basin insigniter dilatatae, herbaceae. 
Inflorescentiae magnae, 9-20 cm. latae (in S. discolore diametro ignoto), 
floribus numerosissimis, in S. discolore tantum paucis. Fructus intense rubro- 
aurantiaci v. miniati, in S. pekinensi pallidi (in S. discolore, Wilsoniana, 
Giraldiana, pluripinnata colore ignoto); carpidia apice villosa v. lanata. — 
Folia ad summum 8-juga; petioli 2.5-6.5 cm. longi; rhachis exalata, interstitüs 
1.3-4 cm., nonnisi in S. ezpansa 0.8-1.4 cm. longis; foliola media majuscu 
v. maxima (3.5-13.5 cm. longa, 0.8-3.9 em. lata), acutissima simul apice 
angustata v. subacuminata; epidermis subtus papillosa v. raro nonnisi 
reticulato-striata. Inflorescentiae pleraeque ut videtur e rami longioris apice 
ortae. Carpidia 3 v. 4, inde a placenta segregata, nonnisi in S. Giraldiana 
semiconnata 1. Group. 
X OSNCONS ICA DR RO RN CUN MR e tp (I^ qo rS c REL 
florescentiae plerumque laxiusculae v. laxissimae, interdum vero densiflorse 
v. e glomerulis densifloris compositae. Fructus verisimiliter semper albi V. 
rosei v. pallide purpurascentes (sed colore adhuc ignoto in S. ta 
Helenae, laxiflora, Prattii, aestivali, glomerulata, pogonopetala). 2 hachis 
Rami! crassi, 5-8 mm. diam. Stipulae siccae, angustae; folia 3-11-jugà; ! 
plerumque manifeste alata, interstitiis 1-2.5 em. longis; foliola medis Aa 
9.5 cm. longa 0.8-3.5 cm. lata, acutissima v. breviter cuspidata; epid 
* Meaning such branches as are found on herbarium specimens either wih 
flowers or fruits. 
