370 WILSON EXPEDITION TO CHINA 



eerrata dentibus latissime ovato-triangularibus mucronatis, 5.5-10.5 cm. longa et 

 4-9 cm. lata, supra laete viridia, glabra, subtiis pallidiora, pilis stellatis brevibus 

 albidis laxe conspersa, nervis utrinsecus 6-9, ut trabeculae satis distantes subtus 

 elevatis; petioli graciles, glabri, 4-7 cm. longi. Flores non visi; pedunculi et 

 pedicelli subteretes, laxe breviter stellato-pilosi ; bracteae anguste oblongae, obtusae, 

 basi plerumque attenuatae, 5-7 cm. longae et 1-1.5 cm. latae, utrinque stellato- 

 pubescentes, subsessiles v. breviter stipitatae, infra medium pedunculo adnatae. 

 Fructus 1-3, ovoideus v. obovoideus, 8-10 mm. longus et 6-7 mm. latus, obscure 

 5-costatu8, styli basi brevissimo coronatus, dense tomento stellate brevissimo 

 cinereo-albido vestitus. 



Kansu: Lotani, south of Min-chou on road to Siku, alt. 2600-2800 m., 

 August 13, 1911, W. Purdom, type; Min-chou, alt. 2600 m., 1911, W. Purdom. 



We are without any precise information on this interesting Linden which in ap- 

 pearance is markedly different from all other Chinese species. It is apparently 

 most closely related to T. chinensis Maximowicz, which is a much more hairy 

 plant with thicker, more strongly veined leaves covered with a thin gray tomentum 

 on the under side and very sharply angled fruit. In a general way it has some re- 

 semblance to T. paucicostata Maximowicz, but this more glabrous plant with small 

 leaves, relatively large quite glabrous bracts and numerous small flowers and non- 

 costate fruit belongs to an entirely different section of the genus. 



Tilia mandshuria Ruprecht & Maximowicz in Bull. Acad. Sci. St. Petersbourg, 

 XV. 124 (1856); in Mel. Biol. II. 413 (1857). — Maximowicz in Mem. Sav. Etr. 

 Acad. Sci. St. Petersbourg, IX. 62 {Prim. Fl. Amur.) (1859); in Bull. Acad. Sci. 

 St. Petersbourg, XXVI. 434 (1880); in Mel. Biol. X. 586 (1880). — Bayer in Verh. 

 Zool.-Bot. Ges. Wien, XII. Abh. 48 (Monog. Tilia) (1862). — Baker & Moore 

 in Jour. Linn. Soc. XVII. 380 (1879). — Franchet in Nouv. Arch. Mus. Paris, ser. 

 2, V. 212 {PI. David. I. 60) (1883). — Komarov in Act. Hort. Petrop. XXV. 28 

 (1907). — Schneider, III. Handb. Laubholzk. II. 384, fig. 257 i-k (1909). — V. 

 Engler, Monog. Tilia, 114 (1909). 



Tilia argentea Hort. Paris apud Regel in Bull. Acad. Sci. St. Petersbourg, XV. 



216 (non De Candolle) (1857); in Mel. Biol. II. 482 (1857). 

 Tilia argentea, /3 mandshuria Regel in Mem. Acad. Sci. St. Petersbourg, ser. 7, 



IV. No. 4, 30 {Tent. Fl. Ussur.) (1861). 

 Tilia pekinensis Ruprecht apud Maximowicz in Mem. Sav. Etr. Acad. Sci. 



St. Petersbourg, IX. 469 {Prim. Fl. Amur.) (nomen nudum) (1859). — Bayer 



in Verh. Zool.-Bot. Ges. Wien, XII. Abh. 49, t. 9, fig. 3 {Monog. Tilia) 



(1862). 

 Tilia mandschuria, var. pekinensis V. Engler apud Schneider, III. Handb. 



Laubholzk. II. 384 (1909). —V. Engler, Monog. Tilia, 115 (1909). 



Chili: Weichang, 1909, W. Purdom (Nos. 53, 53=); near San-tun-ying, 

 mountain slopes, June 2, 1913, F. N. Meyer (Nos. 129, 991); Hsiao Wu-tai-shan, 

 alt. 1600-2300 m., August 20, 1913, F. N. Meyer (Nos. 130, 1245). Mand- 

 shuria : Shengking, Tsien-shan mountains, June 9, 1906, F. N. Meyer (No. 123); 

 Mukden, east Tomb, May 29, 1906, F. N. Meyer (No. 100); east of Harbin, 

 mountains, August 31, 1903, C. S. Sargent. Korea: Chinnampo, September 17, 

 1905, J. G. Jack; Diamond Mountain, June 24, 1906, U. Faurie (No. 490). 



On young trees and on very vigorous shoots or adventitious branches the 

 leaves are often more or less three-lobed. 



