TREES AND SHRUBS. 



YIBTTKTOM ICHANGENSE, Eehd. 



VlBURNUM ICHANGENSE, n. Sp. 



Viburnum erosum, ve^^hangense, Hemsley, Jour. Linn. Soc. xxiii. 352 (in part) (1888). — 



Griibner, Engler Bot. Jahrb. xxix. 589. 

 Viburnum erosum, var. setchuense, Griibner, Engler Bot. Jahrb. xxix. 589 (1901). 



Leaves membranaceous, ovate to ovate-lanceolate, acuminate, truncate or subcordate at the base, 

 dentate, yellowish green and loosely covered on the upper surface -with furcate or fascicled hairs 

 borne on minute tubercles, more or less stellate-tomentose on the lower surface, particularly on the 

 veins, the tomentum interspersed on the midribs with loosely appressed simple hairs, from 3.5 to 

 6.5 centimetres long and from 1.2 to 3 centimetres broad, with from six to nine pairs of straight 

 veins ending in the teeth ; petioles from 3 to 7 millimetres in length, pubescent, furnished with 

 subulate persistent stipules. Corymbs terminal and lateral, from 2 to 4 centimetres in diameter, 

 pubescent, on slender peduncles from 1 to 2 centimetres long ; rays four or five, subtended like the 

 raylets and flowers by linear pubescent bractlets ; flowers on rays of the first and second order ; 

 ovary obovoid, 1.5 millimetres high, stellate-tomentose like the broadly ovate calyx-teeth ; corolla 

 rotate, 5 millimetres in diameter, glabrous ; the lobes orbicular-ovate ; stamens as long or some- 

 what shorter than the corolla ; anthers suborbicular, yellow ; style short, conical, as long as the 

 calyx-lobes. Drupe ovoid, from 6 to 7 millimetres high, crowned by the persistent calyx-lobes, 

 usually covered with scattered stellate hairs ; stone 6 millimetres high and 4.5 millimetres broad, 

 much compressed, with three shallow ventral grooves and two shallow dorsal grooves; seed brown. 



A shrub, with slender branches covered with stellate and long simple hairs during their first 

 year, becoming glabrescent and usually light grayish brown in their second season and reddish 

 brown the following year. Winter-buds small, pubescent, with two pairs of scales. 



China : Hupeh, A. Henry (Nos. 232, 1888, 2289, 5271, 5476, 6594), E. H. Wilson (Nos. 364, 

 569, 946) ; Szech'uan, S. Wushan (No. 5276), and N. Wushan, A. Henry (No. 7052), A. von 

 Bosthom (Nos. 2298, 2299 in Herb. Christiania). 



Viburnum ichangense is most closely related to Viburnum erosum, Thunberg, but is readily distinguished from that 

 species by the densely pubescent ovary, the smaller corymbs, and the smaller ovate to ovate-lanceolate distinctly acumi- 

 nate leaves. Henry's No. 232, from which Rosthorn's specimens described by Grabner as Viburnum erosum, var. 

 setchuense, cannot be distinguished, must be considered the type of Hemsley's Viburnum erosum, var. ichangense. 

 Grabner may have compared Rosthorn's specimens with Henry's No. 1888, also quoted by Hemsley under his Vibur- 

 num erosum, var. ichangense. This, however, differs in its larger glabrescent leaves and may be a distinct variety, but 

 w thout flowers I cannot venture a definite opinion in regard to it. 



Twenty-one species of Viburnum from eastern Asia have now been figured and described in this work ; and as the 

 preparation of these plates and descriptions has made it necessary to study other Asiatic species of the genus, it seems 

 desirable to give the following enumeration of all the known Japanese and Chinese Viburnums, especially as nearly three 

 times as many are now known as there were in 1880 when Maximowicz wrote the last revision of the Asiatic Viburnums. 

 This enumeration has been made possible through the kindness of the keepers of the Herbaria at Kew, Florence, St. 

 Petersburg, and Christiania, who have loaned the Arboretum the type specimens of the species not represented in the 

 collections of Harvard University. 



THE VIBURNUMS OF EASTERN ASIA. 

 CONSPECTUS OF THE SECTIONS, 

 yn- f bs paniculate, with opposite ramifications; drupes black or purple; stone with a deep ventral furrow. I. Thtrsosma. 



