54 WILSON EXPEDITION TO CHINA 
The description of von Seemen being based on rather incomplete fruiting mate- 
rial, I add a fuller description based on Wilson’s specimens, especially on No. 
1411. 
Frutex 0.9-3.6 m. altus, ramosus; ramuli tantum initio sparse pilosi, mox glabri, 
purpureo- v. nigro-brunnei. Folia elliptica, elliptico-oblonga, lanceolata v. rarius 
ovata, basi in petiolum breviter attenuata v. saepissime obtusa v. rotundata, apice 
acuta v. subacuta, supra viridia, initio saepe tota facie breviter pilosula pilis fulvis 
et albis mixtis v. tantum costa albo-tomentella, mox glabra, subtus glauca, semper 
glabra v. tantum costa initio pilosula, margine integra, minora 2-3.5 cm. longa et 
1-1.5 cm. lata, majora lanceolata usque ad 5 em. longa et 2 cm. lata v. latiora 
ad 4.5 cm. longa et 2.3 cm. lata, utrinque costa nervisque tenuiter prominentibus, 
vix reticulata; petioli graciles, mox glabri, (3-)5-10 mm. longi. Amenta coetanea, 
pedunculo 3-10 mm. longo foliis minimis v. parvis saepe caducis instructo suf- 
fulta, rhachi glabra v. sparse pilosa, c laxiflora, 2.5—4.5 em. longa et 0.5-0.6 mm. 
crassa, 9 densiflora, 2.5-5 cm. longa et 0.5 (v. fructifera 0.7) em. crassa; flores d' 
diandri, filamentis liberis fere ad medium villosis, antheris parvis subglobosis 
flavis (v. dein brunneis); glandula una ventralis ovata v. apice incisa, satis crassa, 
bractea duplo brevior; bracteae obovatae, obtusae, brunnescentes, glabrae; flores 
9 ut a cl. von Seemen descripti. 
Salix hypoleuca, var. platyphylla Schneider, n. var. 
A typo differt folis latioribus late ellipticis basi rotundis apice 
brevissime apiculatis, 2.3-4.7 cm. longis et 1.5-3 em. latis, amentis 
fructiferis longioribus, ad 7.5 cm. longis, ramulis annotinis flavidis. 
Western Szech'uan: west and near Wén-ch'uan Hsien, thickets, 
alt. 2000-2600 m., July 1908 (No. r418*, type; shrub 3-6 m.; with 
fruits); same locality, October 1908 (No. 1418; sterile; ramulis annotinis 
nigro-purpurascentibus). 
Giraldi's specimen of the type agrees very well with Wilson's No. 1411. The 
Hupeh plant is intermediate between the type and var. platyphylla, which other- 
wise agrees with this species. S. hypoleuca may be distinguished from S. longiflora 
Andersson by its glabrousness, by the somewhat longer petioles and by the almost 
sessile stigmas. 
Of No. 1418 there are living plants in by the Arnold Arboretum, but they have 
not yet flowered. 
Salix rhoophila Schneider, n. sp. 
Frutex 1.2-2.4 m. altus, valderamosus; ramuli juveniles tantum villo- 
suli, interdum pilis albis et fulvis mixtis, hornotini dein subglabri, anno- 
tini vetustioresque glabri purpurascentes, subpruinosi. Folia valde 
juvenilia tantum primaeva subtus v. utrinque albo-tomentella (pilis 
fulvis intermixtis), mox glabra, elliptica v. elliptico-oblonga, integra, 
ceterum nondum satis evoluta. Amenta c subsessilia, basi foliolis 
minimis 2 v. squamiformibus saepe caducis instructa, 1-1.5 cm. 
longa, circiter 0.6 cm. crassa, rhachi villosula; flores diandri, fila- 
mentis libris basi villosis, antheris parvis flavis ovato-globosis, glan- 
