127 
Bnt, as I ha vp stated in a note nnder 77. micrantJia, IT. Dryobalanoirfes 
appears to be a composite species ; moreover, its author nowhere describes 
its flowers. For these reasons I think it ought to be suppressed as a 
species. 
7. Retinodendron, Korthals. 
Resinous trees, with the leaves, inflorescence, and flowers of Vatica. 
Ripe fruit globular, crowned by the persistent style, 1-cclled, 1-seeded, 
the pericarp coriaceous, indehiscent. Calyx of ripe fruit slightly ac- 
crescent, the pieces oblong, nearly equal, and quite free from, and usually 
shorter than, the fruit (longer in, R. Kunsthri). Isauxis (sub-genus 
of Vateria) W and A. Distrid. Malaya and British India. Species about 
10, 
Isauxis was established by Wight and Arnofc as a sub-genus of Vateria t Linn, 
to rcccivo the three species Vateria lan-c&vfolia, Roxb., V. Roxburgh iana, Wight and 
V. Ceylonica, Wight (Stemoporvs Wighlii, Thw.l and its chnractora were, "Segments 
of the calvx orate, acute, enlarging in fruit ; petals falcate and about three times tho 
length of tho calyx i stamen* 16 with oblong anther cells style Bhort ; stigma 
olavate, 3-6 toothed i panicles axillary, shorter than the leaveB." The other section 
of Vateria suggested by Wight was Eu-Yateria (the Yateria of Linnteua and of 
which ft indica, L. is the typo) and of this the characters are, " Calyx-segments 
obtuse, scarcely enlarging in fruit: petals oval, ecarooly longer than the calyx : 
stamens 40 or 50 with linear anther-cells : style elongated : stigma acute ; panicle 
large and terminal. Korthals, evidently overlooking Wight's Illustrations, pub- 
lished (Verh, Nat. Gesch. Nod. Ind. p. 56) his genus Retinodendmi, to cover 
one of the very plants (tna., Vateria lanee&folia, Roxb.) for which Wight and 
Amot founded the sub-genus Isauxis; and to this Rctinndendmn Korihnls added 
his own Malayan species R. Rassak and R, pauciftorum. Although Isauxis may have 
tho priority as a sub-genus (Wight'B Illustrations were published in 1840, and 
Korthals" book, just quoted, bears the date 1839 — 1842), Retinodendron takes prece- 
dence as a genus. The flowers of Retinodendron are exactly those of all tho species 
of Vatica (except the anomalous F, scaphula, Roxb.) inasmuch as the segments of 
the calyx are slightly imbricate when tho bud is very young, becoming vnlvate as 
the. bud advances in age ; tho petals are much longer than broad, their apices are 
not indexed in aestivation, and they are not spreading when expanded. The fruit 
itself is also praotically that of Fotfco ; but the fmiiing-ealyx is different, for its 
lobes are invariably free from the beginning, they are pretty nearly equal to each 
other, bnt (although slightly accrescent) they are in most cases shorter than tho fruit. 
As regards its calyx, Retinodendron is closely allied to Yateria, but it differs from 
Yateria in its flowers ; for in Yateria the Rtamena are numerous (40 to 50), the 
petals aro scarcely longer than the segments of the calyx and are spreading ; more- 
over the inflorescence is longer in Vateria than in Retinodendron, and it is terminal. 
In short, Retinodendron has the flowers of Vatica and the fruit of Vateria. Dr. 
Bnrck forms Rtfft«orZendro» and Isauxis into sections of the genus Vatica, giving 
however characters to the section Isauxis which form no part of Wight's original 
characters of it as a sub-section of Vateria. In Dr. Burck'B section Isauxit, " the 
eulyx-lobea are all accrescent, sub-equal to the fruit, or much longer," 
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