130 ' WILSON EXPEDITION TO CHINA 
bus. Folia decidua, oblonga v. oblongo-obovata, obtusa, basi rotun- 
data v. late cuneata, 6-10 mm. longa et 2-3 mm. lata, glabra, supra 
eoeruleo-viridia, subtus glaucescentia, utrinsecus costis 3 v. 4 supra 
impressis, subtus conspicuis; petioli glabri, 0.5 mm. longi. Flores 
bini in pedunculis glabris petiolos aequantibus v. paullo superantibus 
erectis v. suberectis axillaribus in parte media v. superiore ramulorum, 
fragrantissimi; bracteae anguste oblongae, glabrae, 2.5-4 mm. longae, 
ealycem duplo superantes; bracteolae in cupulam vix lobatam ovariis 
dimidio breviorem connatae; ovaria ovoidea, libera, 1.5 mm. longa, 
bilocularia; dentes calycis ovati v. oblongo-ovati, obtusi, inaequales, 
dimidia ovaria aequantes, sparse glanduloso-ciliati; corolla tubulosa, 
alba, extus glabra, tubo cylindrieo fauce leviter constricto, 8-10 mm. 
longo, 2 mm. diam., intus supra insertionem staminum pilis longis 
infra pilis brevibus sparsis instructo, lobis patentibus suborbicularibus, 
1.5 mm. longis; filamenta brevissima, tubo paullo supra medium affixa, 
antherae oblongae, connectivo loculos paullo superante; stylus glaber 
tubo dimidio brevior. Fructus desiderantur. 
Western Szech'uan: thickets in sunny places near Mou-kong- 
ting, alt. 2700 m., June 1908 (No. 1883). 
Lonicera tubuliflora seems most nearly related to L. syringantha Maximowicz, 
which is easily distinguished by its much wider lilac corolla with the tube only 
three times as long as the limb and not constricted at the mouth, by the 3-celled 
ovaries, the longer lanceolate calyx-teeth, the higher cupula and the larger often 
acute leaves. 
Lonicera thibetica Bureau & Franchet in Jour. de Bot. V. 48 
(1891). 
Western Szech'uan: uplands around Tachien-lu, alt. 2500 m., 
July 28, 1908 (No. 827, in part); around Sungpan, abundant, alt. 
2400-3000 m., August 1910 (No. 827, in part). 
Lonicera syringantha Maximowiez in Bull. Acad. Sci. St. Péters- 
bourg, XXIV. 49; in Mél. Biol. X. 77 (1877). 
Western Szech'uan: upland thickets, Ta p'ao shan, northeast of 
Tachien-lu, alt. 3600 m., July 6, 1908 (No. 1872); Pan-lan-shan, west 
of Kuan-Hsien, alt. 3600 m., June 24, 1908 (No. 1873). 
Wilson's specimens differ slightly from the type in their shorter corolla tube, 4-5 
mm. long, and in their narrower and smaller leaves broadly cuneate at the base and 
usually in threes. One of the branches shows the young leaves beneath and the 
flower buds furnished with a very slight floccose pubescence which soon disap- 
pears. 
