f 



192 WILSON EXPEDITION TO CHINA 



leviter striati, initio puberuli, mox glabrescentes, lenticellis puncti- 

 formibus conspersi; gemmae subglobosae, perulis 2 valvatis fuscis 

 extus glabris intus dense tomentosis obtectae. Folia bipinnata, 5- 

 8-juga, cum petiolo 18-35 cm. longa; pinnae plerumque suboppositae 

 infimis et simmiis exceptispinnatae, 1^-jugae, foliolis ovatis v. ovato- 

 oblongis sessilibus v. fere sessilibus, acutis v. breviter acuminatis 

 basi trimcatis v. late cuneatis irregulariter duplo inciso-serratis 1.5- 

 3 cm. longis, supra glabris venis pilosulis exceptis, subtus pallidioribus 

 ad venas tantum sparse villosis, foliolis terminalibus pinnarum 

 multo majoribus acxmiinatis basin versus pinnatisectis, pinnae in- 

 fimae et summae plerumque indivisae inaequaliter et dupliciter inciso- 

 serratae et basin versus plerumque inciso-lobatae, acuminatae, basi 

 saepe subcordatae; petioli 3.5-5 cm. longi, ut rhachis fere cylindrici 

 supra canaliculati et puberuli, basi dilatati. Flores polygamo-dioeci, 

 aurei, in paniculis terminalibus erectis multifloris 15-25 cm. longis 

 V. ultra et 12-20 cm. latis dispositi; rhachis striata et ramuli basi 

 glabrescentia apicem versus villosula; bracteae lanceolatae, acutae, 

 pubescentes, 2-3 mm. longae, deciduae; pedicelh 3-6 mm. longi, 

 villosuli, apice glabrescentes; sepala 5, paullo inaequalia, concava, 

 orbicularia v. ovalia, 2-2.5 mm. longa, eroso-ciliata v. lacera; petala 

 sursum curvata, anguste oblonga, obtusa, 8-9 mm. longa et 2-3 nun. 

 lata, auriculata, supra imguiculum dense villosum 2 mm. longum; 

 stamina 8, in floribus mascuhs 8-9 mm. longa, in femineis 4-5 mm. 

 longa, filamentis curvatis subulatis v. filiformibus, pilosis, antheris 

 ovalibus apice truncatis margine sparse villosis; pistillum circiter 6 

 mm. longum, sparse pubescens in stylum curvatum attenuatum, 

 stigmate simplice v. obsolete bifido. Capsula ovato-oblonga, basi 

 rotundata v. subcordata, apice obtusa v. rotundata, apiculata, 5-6 

 cm. longa et 3-3.5 cm. lata; semina globoso-obovoidea, punctulata, 

 nitida, atrobrunnea, circiter 7 mm. longa. 



Western Szech'uan: northeast of Tachien-lu, dry valleys near 

 Romi-chango, alt. 2300-2600 m., June 28 and September 1908 (No. 

 2370, type) ; without locality, July and September 1904 (Veitch Exped. 

 No. 3364); Wei-kuan, A. von Rosthorn (No. 2523). 



This new species is most closely allied to K, paniculata Laxmann which is 

 readily distinguished by its often simply pinnate leaves, much broader less coarsely 

 mcised eaflets with less acute teeth, by its ovate or oblong-ovate, acute sepals, 

 valves "" ^ ^^ ^^^^^ ^^ '^^ sharply pointed fruit with acute or acuminate 



Koelreuteria apiculata Rehder & Wilson is common in the hot, dry, ahnost 

 desert-hke river valleys of western Szech^uaa. It ia a rather low tree with wide- 



