460 WILSON EXPEDITION TO CHINA 
Western Szech’uan: Chiu-ting-shan, cliffs, rare, alt. 2600 m., 
June 22, 1908 (No. 3012); Mupin, woods, alt. 2000-2600 m., June 
and October 1908 (No. 1128). 
This species I have named at the request of Mr. Wilson in compliment of Dr. 
Esserteau, bacteriologist, at one time attached to the Medical School at Chengtu, 
to whom Mr. Wilson is indebted for much kindly service during the years 1908 
and 1910. 
Sorbus Conradinae Koehne, n. sp. 
Arbor 6-8-metralis trunco 20-25 em. diam.; rami 5-8 mm. diam., 
cinerei; gemmae 0.7-1 cm. longae, supra medium v. summo apice 
tantum albicanti-sericeae. Stipulae herbaceae, magnae, circiter 
1 em. latae, dentatae, pro parte v. omnes persistentes; folio cum 
petiolo 2.5-6 cm. longo (16-)20-27 em. longa, 5-6-juga; rhachis 
exalata, lanato-tomentosa, demum plus minus glabrata, saepe pur- 
purea, interstitiis 2-2.7 em. longis; foliola inde a pari tertio deorsum 
sursumque decrescentia, basi hine rotundata, iline supra basin 
contracta, oblonga v. oblongo-lanceolata, media 6-8 cm. longa, 
2-3.2 cm. lata, breviter angustata v. subacuminata acutissima, basi 
v. quarta parte integra ceterum argute serrata dentibus pro parte 
subduplieatis, primariis utrinsecus circiter 10-22 patulis, supra 
glabra, subtus lanato-tomentosa alba costa ochracea v. purpurascente, 
nervis utrinsecus circiter 12-15 supra argute impressis subtus valde 
prominentibus, reticulo supra prominulo subtus sub tomento abscon- 
dito, demum coriacea; epidermis supra laevis, subtus summopere 
reticulato-papillosa, papillis elatis confertis apice scaberrimis. In- 
florescentia verisimiliter ramum longiorem terminans, 12-14 cm. 
lata, 8-20 em. longa, convexa, densiflora, initio verisimiliter albo- 
tomentosa sed autumno plus minus glabrata. Flores ignoti; carpidia 
4, inde a placenta segregata, apice villosiuscula. Fructus globosus 
circiter 4-6 mm. diam., scarlatinus v. rubro-aurantiacus sepalis 
horizontaliter inflexis. 
Western Szech’uan: west and near Wén-ch’uan Hsien alt. 
2000-2500 m., September 1908 (No. rors); same locality, wood- 
lands, alt. 2600-3000 m., October 1910 (No. 4156); Pan-lan-shan, 
west of Kuan Hsien, woods, alt. 3000 m., October 1910 (No. 
4321). 
The species is named for the wife of the author. It differs from S. Esserteauiana 
Koehne in its broader leaflets with the veins deeply impressed above and strongly 
elevated beneath, and in their snowy white, not greenish white, under surface. 
