ON SOME MOUNTAIN PLANTS FJROM NORTHERN CHINA. 135 



the cultivated shrub invariably has undivided leaves, in the neighbour- 

 hood of Peking they are habitually lobed, like those of Broussonetia 

 papyrifera, Vent. 



Urtica dioica, Linn., y angustifolia, Led. *' Ortie tres-piquante, 

 produisant des douleurs prolongees." A specimen from cultivated 

 fields by the Nan-kau Pass, sent by Dr. S. W. Williams, is of less 

 coarse growth, and quite destitute of stinging hairs. 



Juglans mandshirica, Maxim. (Maxim. Mel. biol. Acad. St. 

 Petersb., viii., 631, figg.). "En Chinois Shatt-ho-fao (Nojer des mon- 

 tagnes). Assez commun sur le Po-hua-shan. '' J'enai vu de grands 

 arbres. On m^a dit que les fruits du noyer des montagnes sont deux 

 fois plus grands que ceux du noyer commun. Cependant, les paysans 

 n'ont pu me procurer que des fruits moyens de cet arbre, que je vous 

 envoie. On m'a promis les grands fruits pour I'automne. Vous trou- 

 verez aussi une feuille et quelques noix de Juglans regia qu'on cultive 

 beaucoup dans les vallees, et qui y croit vigoureusement. Nulle part 

 je ne Tai rencontre a I'^tat sauvage. D'apres les livres chinois, le 

 J. regia {ho-fao) aurait e'te introduit en Chine des contrees occidentales. 

 Les feuilles du shan-ho-fao ont une odeur balsamique tres agreable, 

 mais tres differente des feuilles du noyer commun. II y a aussi dans 

 les montagnes des noix sans coque, mais je n'ai pu mettre la main 

 dessus. Le Pere David en parle dans sa brochure."* A comparison 

 of the specimens sent with authentic ones from Amuria and Japan, 

 received from M. Maximowicz himself, and transverse and vertical 

 sections which I have made of the nut, leave no doubt of the identity 

 of the species, hitherto only met with as far south as the boundary 

 between Russian Manchuria and Korea. The nut is less deeply 

 rugose than in Manchurian specimens,! and of a pale brown, precisely 

 like that of J. regia, not a blackish grey ; and this circumstance, 

 together with Dr. Bretschn eider's remark about the large nuts, render 

 it not unlikely that the statement of the natives, that the fruit described 

 by Maximowicz under the name of J. stenocarpa belongs to the same 

 species, will prove well founded ; in internal structure there is no 

 difference. The cultivated specimen of J. regia sent has oval-oblong 

 quite obtuse leaflets, and nearly globose nuts, half as large again as 

 those of J. mandshurica ; but the dissepiments are all cartilagiuous 

 and thin : it therefore belongs to the variety usually grown in 

 Europe, not to sinensis, which, as described and figured (Ann. sc. nat. 

 4e. ser. xviii., t. iv., fig. 39) by M. Casimir De CandoUe, has thick 

 bony septa. 



Quercus sp. nov. ? *' T^es commun. En Chinois Tsai-mu. Les 



♦ Here are Pere David's own words. " Quelques endroits de la province de 

 Pekin fournissent des noix qui sont naturellement depourvus de coque."— (Joum, 

 N.-Chin. Br. R. As. See, n.s., no. vii., 214.) 



t Specimens subsequently received are half as large again as the first, and 

 with a rugosity quite as remarkable as in those sent by Maximowicz ; some of 

 them as nearly pale as J. regia, others of a rufous hue, but none aa dark as the 

 Amurian nuts of J. mandshurica, which, however, the larger exceed in size by 

 one third. The smaller and paler nuts first received are much like my authentic 

 Japanese ones of J. Sieboldiana, Maxim., though somewhat larger ; but I am 

 persuaded they cannot be separated from the others. I fear the species have 

 been unduly multiplied. 



