A THIRD DECADE OF NEW CHINESE PLANTS. 339 
U. alata, Mx., but very distinct as a species, and well marked by its 
fewer- flowered fascicles, short pedicels, and the large size of its hair 
fruit, somewhat exceeding that of the Indian U. (Holoptelea) integri- 
folia, Roxb. 
410. Planera (Abelicea) Davidii, n. sp.; ramis flexuosis lentis (nec 
fragilibus) cortice brunneo obductis, ramulis floriferis hornis ad latera 
preteritorum aphyllorum (cujus alter abortu plerumque abbreviatus ad 
spinam validam deminuitur) 2—3-fasciculatis pilis crispulis pubentibus, 
foliis petiolo 4—4, lin. supra piloso suffultis oblongis basi subcordatis 
apice acutis serratis serraturis more dgrimoniarum basi incumbentibus 
utrinque 8-11 singulis costulam excipientibus undique (novellis etiam 
immo lente adhibita) glaberrimis supra plus minus conspicue ac 
sepe nigricanti-punctatis subtus pallidioribus 4-10 lineas longis 
2—4 lin. latis, stipulis subscariosis lanceolatis puberulis deciduis pe- 
tiolos duplo superantibus, floribus (d non visis) fertilibus per totam 
longitudinem ramulorum dispositis axillaribus 1—4-nis pedicellis angu- 
latis glabris iis zequilongis suffultis, perigonii rugosi glabri lobis 4 ob- 
tusissimis ciliatis, disco nullo, staminibus perigonio duplo longioribus 
antheris magnis basi apiceque locellorum disjunetione emarginatis, 
achzeniis (juvenilibus bilinealibus tantum visis) sessilibus dimidiato- 
ovatis tenuiter rugulosis baud nervosis stigmatibus binis papillosis ob- 
lique coronatis.—In montosis ditionis Pekinensis necnon circa Jehol, 
unde specimina paulo maturatiora, m. Maio coll. R. P. David, mission- 
arius apostolicus. (Exsice. n. 14575.) 
This very interesting species differs from P. Richardi, Mx., and 
-from Miquel’s recently deseribed P. Japonica by the pedicelled usually 
fasciculate ¢ flowers, situated in the leaf-axils along the entire length 
of the branchlets, and destitute of a disk ; and thus strengthens Plan- 
chon’s view that Spach's Zelkova cannot be separated generically from 
Planera. I trast M. David may get ripe fruit, which would possibly 
afford other characters. There is a noteworthy parallelism between 
the geographical distribution of this genus and Liquidambar, the re- 
spective species of each being natives, of the area extending between 
the Caspian, Black and Mediterranean Seas, of the continent of North 
America, and of the extreme east of Asia and Japan. 
