138 WILSON EXPEDITION TO CHINA 
far as I can judge this seems to be a rather doubtful species, at least I am not sure 
that Rydberg’s specimens are identical with Trautvetter’s form. It is omitted 
in the keys. 
106. Salix altaica Lundstrom in Nov. Act. Soc. Sci. Upsal. 1877, 36 (Weid. 
Now. Semljas) (1877). 
Salix crassijulis Trautvetter in Nouv. Mém. Soc. Nat. Mosc. II. 308, t. 15 
(1832), fide Lundstrém. 
Salix torulosa Trautvetter, 1. c. 309 (1832), fide Lundström. 
Salix arctica Trautvetter in Ledebour, Fl. Alt. IV. 283 (pro parte, non Pallas) 
(1833). — Ledebour, Icon. Pl. Fl. Ross. V. 18, t. 460 (1834). 
Saliz Pallasii, var. crassijulis Andersson in De Candolle, Prodr. XVI. pt. 2, 
285 (an tantum pro parte?) (1868). 
Salix arctica, f. altaica Wolf in Krylov, Da. Asmaa, 1229 (1909). 
NORTHEASTERN ASIA. Altai. ? Kamtchatka. 
The type of Lundström species is Ledebour's plate of the Altai form. Andersson 
cites specimens from Kamtchatka. So far as I can judge by the plate and by the 
specimens from the Altai, the leaves are elliptic and acute at both ends or obovate- 
oblong and gradually narrowed into the rather short petioles. They are rather 
smooth on the lower surface and only slightly reticulate. : 
It would need copious and good material clearly to fix the limits of the different 
species of this group which, according to Lundstróm, seem connected with S. 
glauca Linnaeus and other arctic species by so many intermediate forms. There 
may be several hybrids among them. 
107. Salix oreinoma Schneider, n. sp. y 
Frutex humilis, ramis prostratis radicantibus; ramuli initio sericeo-villosi, sed 
mox glabri, flavo-brunnei v. purpurei, vetustiores nigrescentes. Folia minora ro- 
tunda v. obovata, utrinque obtusa v. rotunda, majora elliptica v. obovato-ellip- 
tica, basi rotunda v. obtusa, apice saepe subacuta, novella ut videtur utrinque sparse 
sericeo-villosa, dein mox glabra, supra satis viridia, tenuiter reticulata, subtus 
pallida, tenuissime albo-punctata, costa nervisque flavescentibus elevatis, sed vix 
reticulata, margine minute distanter glanduloso-crenato-serrata, minora 1-1.7 cm. 
longa, 0.7-1.3 cm. lata, maxima usque ad 2.5 cm. longa et ad 1.5-1.7 cm. lata; 
petioli 4-6 mm. longi, superne sulcati, glabri. Amenta (9 tantum visa) apice ramu- 
lorum lateralium 2-4 cm. longorum folia plura normalia gerentium 1.3-2 cm. longa, 
circiter 0.9 cm. crassa, pluri- et densiflora, rhachi villosula; ovaria sessilia, sericeo- 
villosa, ovato-oblonga, stylo satis longo apice bifido, stigmatibus partitis linearibus 
divaricatis coronata; glandula una ventralis, pleraque ovato-oblonga, sed inter- 
dum lata et variabiliter incisa, circiter 14 ovarii aequans; bracteae flavo-brunnes- 
centes, ovato-ellipticae, apice truncatae, tantum extus basi villosae, 26-34 ovarii 
aequantes. 
CHINA. Western Szech’uan: southwest of Tachien-lu, bed of torrents, alt. 
4000 m., July 1904 (Veitch Exped. No. 4515, type, 9). 
This interesting species most resembles S. diplodictya Trautvetter, but the leaves 
are not entire. As long as the ¢ flowers are unknown I place it with some doubt 
in this section. 
The specific name is derived from ópewónos, living on the mountains. 
Sect. 17. MYRSINITES Borrer in Hooker, Brit. Fl. 431 (1830); in Loudon, 
Arb. Brit. IIL. 1587 (pro parte) (1838). 
