396 WILSON EXPEDITION TO CHINA 



peduncle left behind by the spathoid bract. The flowers in shape and size re- 

 semble those of M. parviflora Siebold & Zuccarini, to which species Finet & Gagne- 

 pain referred it as a variety. The Japanese plant, however, has yellow-gray bark, 

 broadly ovate to obovate glabrescent leaves, which are scarcely ever hairy except on 

 the veins, and a long peduncle with no signs of a scar. Magnolia Wilsonii has close 

 affinity with M. glohosa Hooker & Thomson which has straw-colored bark, broadly 

 ovate, much larger leaves, different pubescence and obovate sepals. The closest 

 relative of this new species is M. Nicholsoniana Rehder & Wilson, which is dis- 

 tinguished by its yellow-gray bark passing to dull purple the second year, by the 

 generally elliptic-oblong, sometimes obovate-oblong leaves, commonly cuneate at 

 the base, glabrous except on the pubescent midrib and glaucescent below, and by 

 the rather smaller fruit with few carpels. Magnolia Wilsonii is quite common in 

 the moist woods and thickets to the south-east of Tachien-lu, usually in the form 

 of a straggling bush. In late May and early June it is very conspicuous with its 

 pure white petals and sepals and bright red stamens and carpels. It is very flori- 

 ferous and fragrant and promises to be a welcome addition to the Ust of cultivated 

 species. 



Magnolia aulacospenna Rehder & Wilson, n. sp. 



Arbor 6-12-metralis, trunco 0.5-1 m. circuitu, ramis brevibus 

 divaricatis; ramuli satis graciles, hornotini glabri, annotini sparse 

 lenticellati, purpureo-f usci ; cortex trunci pallide einereus, fere laevis; 

 gemmae ovoideae, flavescenti-sericeae, nitidae, gemmae florales 

 ovoideae, circiter 2 cm. longae, dense pilis longis villosis albidis ves- 

 titae. Folia decidua, membranacea, oblongo-lanceolata v. ovato- 

 lanceolata, rarius oblanceolata-oblonga, acuminata, basi rotundata 

 V. rarius cuneata, 10-18 cm., plerumque 12-15 cm. longa et 3.5-6.5 cm. 

 lata, supra glabra, obscure viridia, in sicco leviter reticulata, subtus 

 pallide viridia, secus costam et ad basim nervorum lateralium pilosa 

 ceterum glabra, reticulata, nervis utrinsecus 10-15 fere rectis supra 

 leviter subtus manifeste elevatis, costa media supra leviter impressa 

 subtus manifeste elevata; petioli 6-10 mm. longi, glabri, flavescentes. 

 Flores ignoti. Fructus irregulariter cylindricus, carpellis tantum 

 partim fertilibus inaequalibus; pedunculus 5-6 mm. longus, dense 

 sericeus; carpella lenticellata, rotundata, nee rostrata, valvis ovatis 

 rotundatis 10-12 mm. longis et 8-10 mm. latis; semina solitaria, 

 rarissime 2, orbiculari-obovoidea, compressa, 8-10 mm. longa et lata, 

 scarlatina, testa interiore late obcordiformi basi fere rotundata apice 

 emarginata ventre profunde et late sulcata dorso convexa nigrescente. 



Western Hupeh: Hsing-shan Hsien, open country, alt. 600 m., 

 very rare, September 1907 (No. 361, tjrpe); same locality, roadside, 

 alt. 1100 m., June 8, 1907 (Nos. 36P, 361^). 



This is a very distinct species readily distinguished by its leaves which in shape 

 and texture resemble those of M. salicifolia Maximowicz, except that in the latter 



