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. ScL Upsal. 1877, 36 (Weid. 

 Now. Semljas) (1877). 



Salix crassijulis Trautvetter in Nouv. Mem. Soc. Nat. Mosc. II. 308, t. 15 



(1832), fide Lundstrom. 

 Salix torulosa Trautvetter, 1. c. 309 (1832), fide Lundstrom. 

 Salix arctica Trautvetter in Ledebour, Fl. Alt. IV. 283 (pro parte, non Pallas) 



(1833). — Ledebour, Icon. PI. Fl. Ross. V. 18, t. 460 (1834). 

 Salix Pallasii, var. crassijulis Andersson in De Candolle, Prodr. XVI. pt. 2, 



285 (an tantum pro parte?) (1868). 

 Salix arctica, f. altaica Wolf in &ylov, <I>Ji- Ajimaa, 1229 (1909). 



NORTHEASTERN ASIA. Altai. ? Kamtchatka. 



The type of Lundstrom 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 Lundstrom, seem connected with S. 

 glauca Linnaeus and other arctic ^ecies by so many intermediate forms. There 

 may be several hybrids among them. 



107. Salix oreinoma Schneider, n. sp. 



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 3^ ovarii aequans; bracteae flavo-brunnes- 

 centes, ovato-ellipticae, apice truncatae, tantum extus basi villosae, yk-^A 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 d^ flowers are unknown I place it with some doubt 

 in this section. 



The specific name is derived from opfivofios, living on the mountains. 



Sect. 17. MYRSINITES Borrer in Hooker, Brit. Fl. 431 (1830); in Loudon, 

 Arb. Bnt. III. 1587 (pro parte) (1838). 



