49 



Rhamnella berchemieefolia Makino sp. nov. 



A deciduous moderate-sized tree. Branchlets purplish dark-brown. 

 Leaves alternate, petioled, oblong, 3-12 cm long, l§-5 cm wide, entire but 

 obscurely repand, very narrowly marginate, acuminate at the apex, obtuse 

 or acute at the base, glabrous but slightly pubescent with fine white hairs 

 along the elevated nerves beneath, chartaceous, deep-green but subglaucous 

 beneath ; midrib slender, straight ; veins 6-10 on each side of the midrib, 

 regular, erect-patent and reached to the margin ; veinlets very fine and close ; 

 petiole glabrous, 6-14 mm long; stipule small, subulate, persistent with the 

 deciduous long-acuminate tip. Inflorescence narrow, shorter than the leaves ; 

 rachis slender, with short and loose peduncles and minute scaly deciduous 

 bracts and bracteoles. Flowers minute, pedicellate, umbellate, greenish. 

 Calyx connate below to form a short campanulate tube adhering to a 

 verycarnose disk within ; lobes 5, valvate in bud, deltoid-ovate, obtuse, 

 thick. Petals 5, orbiculate-ovate, alternate to the sepals, much smaller and 

 shorter than the latter. Stamens 5, included, situated on the margin of the 

 disk, opposite to the petals ; anther orbiculate-ovate, introrse ; filament short 

 and subulate. Ovary very short, with a short and thick style above, erect- 

 standing at the centre of the disk ; stigma very minute, sessile on the top of 

 the carnose style, shortly bifid. Drupe few, shortly pedicel ed, cylindrical- 

 oblong, rounded at the top, 6-7 mm long, glabrous, smooth, girt with 

 the persistent five-angled and flat calyx-tube at the base, orange-coloured 

 when mature ; pyrena only one, oblong, yellowish, nearly smooth, stony, 

 longitudinally 1-striated on both sides, 1-locular and 1-seeded. 



Nom. Jap. Yokogura-no-ki (T. Makino). 



Hab. Prov. Tosa in Shikoku: Mt, Yokogura-yama (T. Makanol 

 Autumn 1884, Summer 1889, May 1893 ; T. Inouel Aug. 27, 1896); 

 Prov. Iyo : South-western part (Z. Umemura ! Sept. 2, 1896). 



A very rare tree yet unknown from other localities than Isl. Shikoku, 

 was first discovered by myself in Mt. Yokogura-yama in the province of 

 Tosa in the island, and the Japanese name was assigned after the name 

 of the mountain. It is entirely distinct from R. franguloides (Maxim.) 

 Weberb. (=Mlcrorhamnus franguloides Maxim. ; Iihamnella japonica 

 Miq.) principally in the entire and more hard chartaceous leaves, much longer 

 inflorescence, glabrous petiole, and colour of the bark of the branch. 

 The fruit has the almost similar characters in both species, but that of my 

 plant is a little smaller. The leaves strongly resemble those of some 



