398 WILSON EXPEDITION TO CHINA 



Magnolia Sargentiana Rehder & Wilson, n. sp. 



Arbor 10-25-metralis, trunco ambitu 1-3 m., coma dense ramosa 

 umbrosa, ramis primariis erecto-patentibus, secundariis patentibus; 

 ramuli crassi, hornotini viridi-flavi, glabri, sparse lenticellati, anno- 

 tini flavidi v. cinereo-flavidi, vetustiores cinerascentes; gemmae 

 elongatae, oblongo-ovoideae, obtusae, villosae v. glabrescentes, gem- 

 mae florales ovoideae, acutae, 3.5-4 cm. longae, flavescenti-villosae. 

 Folia decidua, subcoriacea, obovata v. rarius oblongo-obovata, apice 

 rotmidata, emarginata v. brevissime cuspidata, basi anguste v. late 

 cuneata et saepe obliqua, 10-17 cm. longa et 6-10 cm. lata, supra 

 glabra, obscure viridia, nitidula, in sicco manifesto reticulata, subtus 

 pallide viridia, reticulata, dense cinereo-villosa, costa media supra 

 impressa subtus elevata glabra v. glabrescente, nervis utrinsecus 8- 

 12 angulo valde acuto divergentibus fere rectis supra vix prominulis 

 subtus elevatis; petioli graciles, 2-4.5 cm. longi, subteretes, glabri. 

 Flores ignoti, verisimiliter praecoces. Fructus cylindricus, 10-14 cm. 

 longus et 2.5-3 cm. diam. plerumque tortuosus, ante maturitatem 

 carnea; pedunculus crassus, 1-2 cm. longus et 7-10 mm. diam., glaber 

 V. villosus; carpella numerosa, congesta, partim sterilia, lignea, ver- 

 ruculosa, valvis 8-10 mm. altis et 10-15 mm. longis, margine ex- 

 teriore convexis v. rotundatis, supra plerumque breviter rostratis, 

 infra plerumque rotundatis saepe utrinque cohaerentibus ; semina 

 1-2 in quoque carpello, irregulariter orbiculari-obovoidea, compressa, 

 10-12 mm. longa v. lata, scarlatina, testa interiore fusco-atra v. 

 atro-cinerea late obovoidea basi acutiuscula v. fere rotundata apice 

 truncata v. leviter emarginata compressa ventre leviter sulcata v. 

 fere plana dorso convexa. 



Western Szech'uan : Tsai-erh-ti, 30 miles west of Wa-shan, road- 

 side, thickets, alt. 1800 m., September 17, 1908 (No. 914, tyi^e); Wa- 

 shan, moist woods, alt. 1600-2000 m., very rare, September 1908 (No. 

 923). 



This remarkably distinct species is perhaps most closely related to M. Camp- 

 hellii Hooker & Thomson which has differently shaped, glabrescent leaves and a 

 very different fruit with more numerous, smaller, less crowded carpels without 

 beaks and smaller seeds. It may also be compared with M. denudata, var. pur- 

 purascens Rehder & Wilson, which is a smaller tree with vinous-purple bark, 

 rather differently shaped leaves, glabrous or glabrescent below, much smaller and 

 more slender fruits with fewer, laxly disposed carpels without beaks. The shape 

 and pubescence of the leaves and the peculiarly stout, elongated fruit with con- 

 gested, beaked carpels readily distinguish this species from all other members of 

 the genus. 



Magnolia Sargentiana grows to a greater size than any other Chinese Magnolia 



