1924) NAKAI, LIGNEOUS PLANTS OF EASTERN ASIA 77 



m., E. H. Wilson, no. 520. Szechuan: Wen-chuan Hsien, 2700- 

 3000 m., E. E. Wilson, no. 3627; 1000-1900 m., E. H. Wilson, no. 1095 a; 

 Kiating Fu, 300-700 m., E. H. Wilson, no. 3649; Wa-shan 1000-1600 m., 

 E. H. Wilson, no. 1143; Mupin 1100-1600 m., E. II. Wilson, no. 1294. 



Distylium gracile Nakai, sp. nov. 



Distylium racemosum var. A. Gray in Mem. Am. Acad. n. ser. vi. 390 (1859). 



Arborea 10 m. alta; trunco diametro circiter 70 cm.; rami graciles, 

 hornotini stellulato-lepidoti, annotini irregulariter fissi. Folia late obo- 

 vata vel obovato-rotundata apice mucronata vel obtusiuscula interdum 

 obscure subtrilobata, 12-32 mm. longa et 7-22 mm. lata, supra lucida 

 minute sparseque stellulata, infra fuscescentia, minutissime sparsimque 

 stellulato-pilosa demum subglabrescentia. Flores ignoti. Fructus soli- 

 tarius terminalis, pedunculo 0-10 mm. longo, ovoideus, usque 10 mm. 

 longus et 7 mm. latus, extus dense fuscescenti-stellulato-lanatus, apice 



mucronatus, 2-locularis. 



Wilson 



Liukiu : 



Wright 



Osteomeles boninensis Nakai, sp. nov. 



Osteomelcs ant hyllidi 'folia var. ? boninensis Decaisne in Nouv. Arch. Mus. 



Paris, x. 184 (1874), nom. nud. 

 Osteomdes anthyllidi folia Maximowicz in Bull. Acad. Sci. St. P6tersb. xix. 



181 (1873); in M61. Biol. ix. 182 (1873), pro parte.— Koidzumi in Jour. 



Coll. Sci. Tokyo, xxxiv. art. 2, 44 (Consp. ltosac. Jap.) (1913).— Non 



Lindley. 



difolia 



congestis 



Frutex erectus, usque 1.5-2.0 m. altus, ramis juvenilibus dense albo- 



senceis. 



6-9 



pilosiie; folia 2-4.5 cm. longa ut petioli albo-sericea ; foliola dense subim- 

 bricato-collocata, 21-33, vulgo lineari-oblonga interdum lineari-obovata 



sed terminalia oblongo-obovata, omnia acuta vel acuminata, supra glabra 



vel pilosella, lucida, subtus sericea. Corymbus foliosus pauciflorus, in apice 

 rami hornotini terminalis, sericeus; calycis tubus sericeus, lobi lanceolato- 

 acuminati, extus sericei, intus glaberrimi 2-3 mm. longi, reflexi; petala 

 albaoblonga, 7-8 mm. longa et 3-4 mm. lata, obtusa; filamenta glabra; 

 styli 5 basi sericei. Fructus rotundatus, pilosus, maturus, niger, edulis. 

 Bonin. Chichijima, E. II. Wilson, no. 8214 (type), Rev. Gonzales, 



1917. 



This plant is very common in Bonin Islands where a form of Osteomeles 

 subrotunda K. Koch also grows. The latter, however, is a low procumbent 

 shrub with more densely sericeous twigs and leaves, fewer (11-17) roundish 



leaflets . Osteomeles 



Osteomeles 



in Tokyo. Of thte former there was once a cultivated plant in the Botanical 

 Garden of the Tokyo Imperial University but it died nearly ten years ago. 



Prunus incisa Thunb. var. gracilis Nakai, var. nov. 



