A tree; 3. SIDEROXYLON DERRYANUM, King & Gamble, n. sp. branchlets grey, uppermost appressed-pubescent; innovations with nearly black hairs. Leaves chartaceous; elliptic, very abruptly shortacuminate at apex, broadly cuneate at base; margins more or less recurved; glabrous above, densely silvery-pubescent beneath; 3 to 5.5 in. long, 1.5 to 3 in. broad; midrib prominent, impressed above; main-nerves 12 to 18 pairs, parallel, starting at an angle of about 75° with the midrib, meeting near the margin in a faint intramarginal looped nerve; secondary nerves similar, rather prominent, reticulations few, obscure; petiole 3 to 5 in. long, channelled above, pubescent with nearly black hairs. Flowers fascicled, about 5 together in the axils of the leaves or of the scars of fallen leaves; pedicels 25 in long, tawnypubescent; buds oblong, conical. Calyx-lobes 5, rounded, obtuse, the 2 outer thick very pubescent, the 3 inner somewhat scarious, pubescent only on the middle of the back. Corolla campanulate, 2 in. long; tube 15 in. long, glabrous within, with a few sparse hairs without; lobes 5, ovate, imbricate, margins recurved. Stamens 5, short, inserted at the top of the tube; filaments conical; anthers ovate-cordate, dehiscing by side-slits; staminodes subulate, glabrous. Ovary villous, obscurely 5-lobed, 5-celled; style very short; stigma obscurely 5-lobed. Berry oblong, dark blue, glabrous, the top flat and crowned with the remains of the style, 6-7 in. long, 1-seeded. Seed oblong, 6 in. long by 3 in. in diam. truncate obliquely at the base; testa thick, light-brown, striate; hilum rather small, sub-basal; albumen thin; cotyledons thick; radicle small. PERAK: Derry-Curtis 3641. The colour of the silvery under-surface of the leaves is difficult to describe it is sometimes dark and smoky-looking. 4. SIDEROXYLON FERRUGINEUM, Hook. & Arn. Bot. Beech. Voy. 266, t. 55 (1841). A small tree; branches rough, ultimate branchlets ferruginous-pubescent like the leaf-buds and young leaves, branchlets with a raised line downwards from each leaf or scar of a fallen leaf. Leaves coriaceous; obovate or oblong-lanceolate, rounded or bluntly acute at apex, attenuate at base; shining above, densely appressed ferruginoussilky beneath when young, ultimately nearly glabrous; 2.5 to 6 in. long, 1 to 3 in. broad; midrib prominent; main-nerves 10 to 12 pairs, fairly prominent, especially above, starting at about an angle of 60° with the midrib, at first nearly parallel then arching upwards to meet near the margin; secondary nerves similar, reticulations oblique; petiole 5 to 7 in. long, the edges bordered by the decurrent margins of the blade, enlarged at base. Flowers fasciculate, shortly pedicelled, in the axils of the leaves or above the scars of fallen leaves on year-old wood below the leaves and shoots of the year; pedicels 1 to 2 in. long, covered like the obtuse buds with rusty tomentum. Calyx-lobes round, .025 to 075 in. in diam., with scarious margins, closely imbricate, rustypubescent outside. Corolla campanulate, 1 in. long; tube short; lobes 5, imbricate, rounded, crenulate, sparingly pubescent near the base within, in flowers wanting or deciduous. Stamens very short, attached to the corolla-tube above the base; filaments linear; anthers rounded, opening by marginal slits; staminodes subulate or somewhat hastate, acuminate. Ovary depressed, obscurely 5-lobed, pubescent; stigma short, cylindric, with 5 minute punctiform styles. Berry ovoid, shining 35 by 3 in., 1-2-seeded. Seeds ovoid, 25 by 15 in.; testa shining, dark brown, thick; hilum large, oblong; albumen thick; cotyledons flat. A. DC. Prod. VIII. 178; Clarke in Hook. fil. Fl. Br. Ind. III. 537. S. attenuatum, A. DC. l.c.; Wight Ic. t. 1590; Kurz For. Fl. II. 117, and in Journ. As. Soc. Beng. XLVI. ii. (1877) 229. Mimusops? attenuata, Wall. Cat. 4150. KEDAH Langkawi, Curtis. PENANG Curtis 273, 703, 704. PERAK: Scortechini 1463; King's Collector 1224. MALACCA: Maingay (K.D.) 982; Griffith (K.D.) 3604; Goodenough 1735. SINGAPORE : Wallich 4150; Lobb 319; Ridley 5643, 5908. A sea-shore tree, found also by Ridley on Tiuman Island and at Kwala Pahang (Trans. Linn. Soc. Ser. 2. III. 317).-DISTRIB. Burma, Andaman Islands, Nicobar Islands, Malay Archipelago to the Philippines and S. China. 5. SIDEROXYLON FIRMUM, Pierre; Burck in Ann. Jard. Buit. V. 17, tab. III. (1885). A small tree; branchlets thick, striate, brown; innovations ferruginous-pubescent. Leaves coriaceous; oblong-lanceolate, shortly acuminate at apex, narrowly acute at base; glabrous above, rustypubescent on the nerves beneath and on young leaves; margins recurved; 4 to 5 in. long, 1 to 1.5 in. broad; midrib strong, prominent, impressed above; main-nerves 12 to 16 pairs, very prominent, about 2 to 3 in. apart, starting at an angle of about 40° with the midrib, parallel, curved near and along the margin; reticulations transverse, very regular and prominent; petiole 1 to 1.5 in. long, channelled above and bordered by the decurrent margins of the blade, rusty-pubescent. Flowers fascicled, 4 to 6 together in the axils of the leaves; pedicels variable, 3 to 6 in. long, rusty-pubescent, slender in flower, thickened in fruit. Calyx-lobes 5, rounded, imbricate, 15 in. long, densely rusty-pubescent, 3 outer thick, 2 inner more or less scarious on the margins. Corolla campanulate, 15 in. long, 5-lobed, glabrous within, slightly hairy without; tube rather short; lobes oblong, rounded. Stamens inserted on the top of the tube; filaments glabrous.; anthers ovate-apiculate; staminodes subulate, about 05 in. long. Ovary villous; style clavate, glabrous. Fruit an oblong or somewhat obovoid berry, depressed at apex, glabrous, fleshy, supported by the somewhat enlarged persistent calyx-lobes, seed usually 1. Seed oblong, obtuse above, somewhat pointed below, little compressed, 6 in. long, 25 in. broad and thick; testa chestnut-brown, shining, crustaceous; hilum linear, flat, occupying nearly the whole inner face of the seed; albumen thick; cotyledons leafy, flat, oblong, 3-nerved; radicle inferior, pointed. Chrysophyllum firmum, Miq. Fl. Ind. Bat. Suppl. 579. PENANG: at West Hill, Curtis, 1575.-DISTRIB. Bangka, Teysmann ; Philippines. The Bangka specimens have the leaves up to 2.5 in. broad, but in other respects we find no difference from Teysmann's type in the Penang plant. SPECIES IMPERFECTLY KNOWN. 6. SIDEROXYLON WALLICHIANUM, G. Don Gen. Syst. IV. 28 (1837). A tree (?); branchlets pale brown, ferruginous-villous as are the innovations. Leaves chartaceous; elliptic-obovate, obliquely acuminate at apex, cuneate at base, crowded towards the ends of the branchlets; 6 to 8 in. long, 3 to 4 in. broad; midrib thick; main-nerves 6 to 7 pairs, curved upwards, distant, reticulations prominent; petiole thick, densely tawny-pubescent. Calyx-lobes apparently 5, short, rounded, rustypubescent. Miq. Fl. Ind. Bat. II. 1037. S. (?) rugosum, Wall. Cat. 4158. The only sheet of this is in the type Herbarium of Wallich's plants with the Linnean Society of London. The remains of flowers are very slight, but they seem to show that the plant belongs to this genus. The note "a small plant growing on crocks-flowers white-from the hills" attached to the sheet, seems to refer to some other plant, for the specimen itself has every appearance of having come from a tree. 4. ISONANDRA, Wight. Trees with milky juice. Leaves coriaceous, entire, alternate, penniveined, the main-nerves and midrib prominent, the rest usually rather obscure. Flowers small, in axillary shortly pedicellate clusters in the axils of present or fallen leaves. Calyx of 4 segments, the two outer opposite, more or less valvate; the two inner also opposite, imbricate. Corolla tubular, campanulate; lobes 4, much imbricate, somewhat twisted. Stamens 8, sub-equal, attached near the base of the corolla, both opposite to and alternate with the lobes; filaments short; anthers lanceolate, sagittate at base, extrorse; staminodes absent. Ovary 4-celled, villous; style linear. Berry somewhat small, ovoid or oblong with a fleshy pericarp. Seed usually 1 only, scarcely flattened; testa thick, shining, crustaceous; hilum lateral, long; albumen fleshy, cotyledons flat, radicle inferior.-DISTRIB. About 7 species, 6 of which in South India and Ceylon. 1. ISONANDRA PERAKENSIS, King & Gamble, n. sp. A small tree reaching 30 to 40 feet in height; ultimate branchlets, leaf-buds and young leaves appressed greyish-brown-pubescent. Leaves coriaceous; obovate-oblong, rounded at the apex, cuneate sometimes unequally at the base; the margins reflexed, glabrous and dull above, thickly brown-pubescent beneath; 2 to 3.5 in. long, 1 to 1.5 in. broad; midrib prominent; main-nerves 8 to 10 pairs at about 60° with the midrib, reticulations very inconspicuous; petiole 2 to 3 in. long, rather stout. Flowers fasciculate, on very short, 1 in. long, thick, angular pedicels in the axils of upper leaves; buds 15 in. long, obtuse, brown-appressed-pubescent. Calyx of 4 lobes, an outer pair and an inner pair, the outer valvate, the inner shining within, minutely ciliate; lobes 15 in. long. Corolla 4-lobed; lobes rounded, about equal to the tube, together about equal to the calyx. Stamens 8, filaments thickened; anthers lanceolate, sagittate at base, extrorse. Ovary slightly hairy, conical, surmounted by a short linear style as long as the calyx; cells 4. Berry oblong, acute, smooth, 4 to 5 in. long. Seeds ellipsoid, acute at apex, scarcely flattened, 35 by ·15 in.; hilum large, oblong; testa dark brown, hard, smooth, shining; albumen fleshy; embryo large, cotyledons oblong. PERAK: at 1,000 to 1,500 feet elevation, King's Collector 7138. DOUBTFUL SPECIES. A small tree, 2. ISONANDRA RUFA, King & Gamble, n. sp. reaching 20 to 30 feet in height and 4 to 6 in. in diam.; younger branchlets and innovations densely ferruginous pubescent. Leaves membranous; obovate, long acuminate sometimes abruptly at apex, cuneate and finally more or less rounded at base; sparsely pubescent above when young, nearly glabrous when old; roughly pubescent beneath, especially on the nerves; 5 to 7 in. long, 1.5 to 2.5 in. broad; midrib prominent; main-nerves 8 to 10 pairs, irregularly distanced, at first at an angle of about 45° with the midrib, then arching upwards; secondary nerves and reticulations prominent; petiole 3 in. long, slender, rusty-pubescent, channelled above; stipules very short, subulate, rusty-pubescent, very caducous. Flowers solitary or in pairs in the axils of the upper leaves or on the upper branchlets, very small; pedicels slender, 25 in. long, recurved. Calyx-lobes 4, densely ferruginous-pubescent; 2 outer valvate, ovate, 2 in. long; 2 inner imbricate, ovate, somewhat scarious and ciliate on the margins. Corolla tubular-campanulate; 2 to 25 in. long; tube slender, minutely hairy without and near the mouth within; lobes 6 (?), linear oblong, 1 in. long, erect. Stamens 6 (?), ·1 in. long; filaments very slender, villous; anthers ovate, penicillate-apiculate. Ovary rounded, glabrous; style slender, curved, 2 in. long. Fruit an oblong berry, about 1 in. long and 5 in. broad. Seed 1, testa thin, shining. PERAK: Scortechini 159; King's Collector 4550, in dense jungle at 500 to 800 feet. In only one flower were any traces found of the corolla and stamens, and there seemed to be 6 corolla-lobes instead of 4, and 6 stamens instead of 8. We consider it best, however, to leave the species here for the present and until better material is available. 5. PAYENA, A. DC. Trees with milky juice. Leaves membranous or chartaceous, often silky beneath; stipules caducous. Flowers fascicled, rather few together, in the axils of the leaves on the upper part of the branchlets, pedicellate. Calyx-lobes 4, the 2 outer usually valvate enclosing the 2 inner generally imbricate. Corolla campanulate; tube broad, short; lobes 8, imbricate, in one or two series. Stamens 16, inserted on the corolla-tube; filaments short; anthers usually extrorse, ovate to linear, connective produced in an acumen; staminodes none. Ovary villous, usually 8-celled; style linear-subulate. Fruit an oblong or ovoid fleshy berry, few-seeded. Seeds oblong, usually somewhat compressed; testa crustaceous, shining; hilum oblong or linear, conspicuous; albumen thin; cotyledons leafy, thin, flat, nearly as long and broad as the cavity of the seed; radicle inferior, generally rather conspicuous.-DISTRIB. About 6 to 7 species, found in the Malay Peninsula and Archipelago. Flowers large, reaching 75 in. in length :— Leaves 6 to 9 in. long, silky-pubescent beneath.. Flowers moderate-sized, berry obpyriform, acuminate at 1. P. Maingayi. 2. P. longipedicellata. 3. P. Havilandi. Flowers small, berry oblong conical, truncate at tip Flowers in fascicles in the axils of the leaves, never apparently terminal:— Leaves glabrous, pedicels slender, flowers small 5. P. lucida. 6. P. dasyphylla. Leaves sessile SPECIES IMPERFECTLY KNOWN. 7. P. sessilis. |