116 TREES AND SHRUBS. 



Viburnum ovati/olium is most nearly related to Viburnum erosum, Thunberg, and Viburnum betulifolium, Batalin. From the 

 former it is easily distinguished by its longer petioles, the longer acuminate leaves, broad and rounded at the base and nearly 

 glabrous, by the pubescent corolla and shorter stamens; from the latter it may be distinguished by the shorter petioles, the 

 ovate leaves rounded at the base, the shorter stamens, and the smaller less compound corymbs. It is also related to Viburnum 

 luzonicum, va.T./ormosanum, Rehder, from which it differs in its stipulate petioles and in the long-acuminate leaves with more numer- 



68. Viburnum betulifolium, Batalin. See p. 99, t. 147. 



59. Viburnum lobophyllum, Griibner. See p. 101, t. 148. 



60. Viburnum dasyanthum, Render. See p. 103, t. 149. 



61. Viburnum hupehense, n. sp. 



Leaves membranaceous, broadly ovate, acuminate, truncate or subcordate at the base, coarsely dentate, with short acuminate 

 mucronate teeth, loosely covered with fasciculate hairs more abundant on the lower side, dark yellowish green on the upper 

 surface, lighter green on the lower surface, with seven or eight pairs of straight veins, from 5 to 7 centimetres long and from 3 to 

 6 centimetres broad; petioles grooved, from 1.5 to 2 centimetres in length, densely covered with fasciculate hairs, and furnished 

 with persistent linear-lanceolate pubescent stipules. Corymbs .terminal, from 4 to 5 centimetres in diameter, on peduncles 

 about 2 centimetres in length and like the rays densely villous, with short fasciculate hairs; rays usually five; flowers unknown. 

 Drupes on rays of the second and third order, ovoid, red; stone much compressed, orbicular-ovate, 7 millimetres long and 6 

 millimetres broad, with three ventral and two dorsal rather shallow grooves; seed reddish brown, minutely punctulate. 



A shrub, with branchlets furnished with fasciculate hairs, becoming glabrous and dark purplish brown in their second year. 

 Winter-buds with two pairs of scales. 



China: Hupeh, A. Henry (No. 6805 in Herb. Gray). 



Viburnum hupehense is most nearly related to Viburnum dilatatum, Thunberg, and Viburnum betulifolium, Batalin. From the 

 first it differs chiefly in its orbicular-ovate leaves and stipulate petioles, and from the second in the leaves being pubescent on 



62. Viburnum ichangense, Rehder. See p. 105, t. 150. 



63. Viburnum erosum, Thunberg, Ft. Jap. 124 (1784). — De Candolle, Prodr. iv. 327. — Siebold & Zucearini, Abhand. Alcad. 

 Munch, iv. pt. iii. 171. — Miquel, Ann. Mus. Lugd.-Bat. ii. 266; Prol. Fl. Jap. 154. — Franchet & Savatier, Enum. PL Jap. i. 200; 

 ii. 308.— Maximowicz, Bull. Acad. Sci. St. Petersbourg, xxvi. 491; Mel. Biol. x. 669. — Franchet, Now. Arch. Mus. Paris, se"r. 2, 

 vi. 28; PL David, i. 148. — Hemsley, Jour. Linn. Soc. xxiii. 351 (in part). — Sargent, Garden and Forest, ix. 85, f. 9. — Palibin) 

 Act. Hart. Petrop. xvii. 103. — Rehder, Bailey Cycl. Am. Hort. iv. 1926. 



Japan: Hondo, Fudji-san, 1862, Maximowicz, Nagasendo near Fukushima and Fusan, 1902, C. S. Sargent, above Narai, Shi- 

 nano, 1905, /. G. Jack; Shikoku, Nanokawa, Tosa, 1887, K. Watanabe ; Kiu-siu, Nagasaki, 1863, Maximowicz. Korea: Quelpart 

 Island, U. Faurie (Nos. 676, 679, 680 in Herb. Arnold Arboretum), Puk-han, Seoul, 1905, J. G. Jack, Tsusima Island, 1859, 

 C. Wilford; rarely cultivated, introduced into the Arnold Arboretum by Professor Sargent. 



Franchet distinguishes three varieties: var. punctatum, var. furcipilum, and var. leave; the first has the leaves with fasciculate 

 hairs raised on minute tubercles, the second has sparse furcate or simple hairs without tubercles and the third is almost glabrous 

 with the exception of the long simple hairs on the branches. A rather distinct form is represented by Faurie's No. 676, which 

 has longer petioles, and larger leaves somewhat resembling in shape those of Viburnum dilatatum, Thunberg. 

 VIII. Opulus, De Candolle. 

 Leaves deciduous, lobed, palminerved, stipulate; drupes red; stone compressed, slightly grooved; albumen solid; glabreseent 

 shrubs; easily distinguished from the other sections by the lobed leaves. 



Petioles glandular; leaves three-lobed, rarely entire; corymbs with radiant flowers. 64. V. Sargenti. 



Petioles without glands; leaves three to five-lobed, with coarsely toothed lobes from 3 to 5 centimetres long- corymbs without 



radiant flowers. ^ y ^^^ 



64. Viburnum Sargenti, Koehne. See vol. i. p. 83, t. 42. 



Viburnum Sargenti, var. calvescens, Rehder, Mitt. Deutsch. Dendr. Ges. xii. 125 (1903). 



This differs from the type in its glabrous leaves and branches. 



There seems to exist a form of this species with all the flowers sterile, as Korshinski mentions a Viburnum Opulus sterile from 

 the mount Ti-san near Seoul. I have observed in the Arnold Arboretum a plant of this species which showed the tendency to 

 produce a few small corymbs with most of the flowers sterile. 



65. Viburnum kansuense, Batalin, Act. Hort. Petrop. xiii. 372 (1894). 



China: Kansu, G. N. Potanin (ex Batalin); western China, E. H. Wilson (No. 3732). 



Arnold Arboretum. A ™ D RbhdEB - , 



