56 WILSON EXPEDITION TO CHINA 



Rubus mesogaeus Focke in Bot. Jahrb. XXIX. 399 (1901) ; in Bibl. 

 Bot. LXXII. 204, fig. 82 (Spec. Rub.) (1911). 



Western Hupeh: north and south of Ichang, thickets, alt. 600- 

 1200 m., May and July 1907 (Nos. 52, 71); Hsing-shan Hsien, thickets, 

 alt. 1200 m., July 1907 (No. 52 a ). 



Rubus mesogaeus, f. floribus roseis. 



Western Szech'uan: Wa-ssu country, W&i-chuan Hsien, wood- 

 lands, alt. 1200-2400 m., June and September 1908 (No. 1042); south- 

 east of Tachien-lu, thickets, alt. 1800-2100 m., June 1908 (No. 3013); 

 Pan-lan-shan, west of Kuan Hsien, woodlands, alt. 2100-3300 m., 

 June 1908 (No. 3015). 



Rubus aurantiacus Focke in Bibl. Bot. LXXII. 211 (Spec. Rub.) 

 (1911). 



Western Szech'uan: Tachien-lu, thickets, alt. 2100-2700 m., 

 September 1908 (No. 992). 



Rubus vicarius Focke in Bibl Bot. LXXII. 211 (Spec. Rub.) 

 (1911). 



Western Szech'uan: Wa-shan, thickets, alt. 1500-2100 m., July 

 and September 1908 (No. 948). 



It would be instructive to cultivate these two forms of the Idaeus-group. 



MADDENIA Hook. f. & Thorns. 



Determined by E. KOEHNE. 



Maddenia hypoleuca Koehne, n. sp. 



Frutex 2-6-metralis; rami novelli glabri v. pulverulento-puberuli 

 v. pubescentes dein saepe glabri fusci, biennes crassiusculi, nigre- 

 scenti-fusci saepe pulverulento-puberuli haud nitiduli; gemmae ovatae, 

 2 mm. longae, glabrae, squamis interioribus sub anthesi auctis. Stipulae 

 6-13 mm. longae, lineares v. lanceolatae v. e basi orbiculari lineari- 

 caudatae, basi glanduloso-fimbriatae; petioli 2-4 mm. longi, eglan- 

 dulosi, subtus glabri, supra in canaliculo initio pubescentes; lamina e 

 basi obtusa v. cordata ovato-oblonga v. oblonga, sub anthesi 3-5.5 

 cm. longa, 1.3-1.8 cm. lata, demum in ramulis fertilibus 5-6.5 cm. 

 longa, 1.3-3.2 cm. lata, in innovationibus 7.5-16 cm. longa, 4.3-7.5 

 cm. lata, sensim v. subito acuminata, duplicato-serrata dentibus 



