ELAEOCARPACEAE. 



Determined by Alfred Rehder and E. H. Wilson. 



ELAEOCARPUS L. 



Elaeocarpus japonicus Siebold & Zuccarini in Ahh. Akad. Miinch. 

 IV. pt. 2, 165 {Fl. Jap. Fam. Nat. I. 57) (1845), non Siebold in Verh. 

 Bataav. Genoot. XII. No. 1, 63 (Sijn. PL Oecon.) (nomen nudum) 

 (1830). — Maximowicz in Bot. Jahrb. VI. 61 (1885). — Hemsley in 

 Jour. Linn. Soc. XXIII. 95 (1886). — Ito & Matsumura in Jour. 

 Coll. Sci. Tokyo, XII. 349 {Tent. Fl. Lutchu. 82) (1899). — Matsumura 

 & Hayata in Jour. Coll. Sci. Tokyo, XXII. 66 {Enum. PI. Formos.) 

 (1906). — Shirasawa, Icon. Ess. For. Jap. II. t. 49, figs. 1-14 (1908). 



Western Szech'uan: Ya-chou Fu, thickets, alt. 1000 m., June 

 1908 (No. 3553; tree 10 m. tall, girth 1.2 m., flowers whitish); Mt. 

 Omei, June 1904 (Veitch Exped. No. 4753; tree 13 m. tall); same lo- 

 cality, E. Faber (No. 57). 



This small tree with pale, fairly smooth bark is very rare in western Szech'uan. 

 Our specimens are male and Faber's consist only of leafy shoots, but so far as 

 the material goes we can find no difference between them and specimens from 

 Japan, where the tree is confined to the warm, southern districts. 



Here may be added another species not collected during the Arnold Arboretum 

 expeditions. 



Elaeocarpus omeiensis Rehder & Wilson, n. sp. 



Arbor 6-metralis; ramuh hornotini initio puberuli, mox glabrescentes, annotini 

 et vetustiores fusco-rubri, sparse lenticellati. Folia membranacea, elliptico-obo- 

 vata V. oblongo-obovata, obtusa v. breviter obtusa, acuminata, basi cuneata, 

 crenata, triente inferiore plerumque Integra, 7-10 cm. longa et 3-4.5 cm. lata, supra 

 glabra v. puberula praesertim basin versus ad costam mediam, luteo-viridia, subtus 

 glabra, in axillis nervorum hinc inde glandulis perforatis instructa, nervis utrin- 

 secus 5-7 curvatis et anastomosantibus supra leviter subtus magis elevatis, venulis 

 Batis conspicuis; petioh 0.5-1.5, lamina decurrente anguste alati, supra puberuli. 

 Floras hermaphroditi, albi, in racemis axillaribus 4-6 cm. longis; pedunculus 0.5-1 

 cm. longus ut rhachis angulatus et sparse minuteque pubescens; pedicelli graciles, 

 recti V. curvati, 3-5 mm. longi, puberuli; bracteae minutae, caducae; sepala 5, 

 rubescentia, lanceolata, 4 mm. longa et circiter 1 mm. lata, acuta, leviter incurva, 

 ciliolata, extus puberula, intus sparse pubescentia, leviter carinata; petala, sepalis 

 longiora, fimbriata, usque ad medium incisa, basin versus angustata et inferne 

 ciliolata, intus puberula; discus lobatus, puberulus; stamina 14, filamentis vix 

 1 mm. longis glabris, antheris oblongis 2 mm. longis minute setulosis; ovarium 



360 



