Calyx campanulate, with 5 broadly triangular erect lobes, closely applied to the fruit. Corolla widely campanulate, 2 in. long, the teeth 5, broad, blunt, short, reflexed. Fruit superior, sub-rotund, smooth, many-seeded, crowned by the fluted style; seeds oblong, concave, compressed, numerous.

PERAK: Scortechini.

3. DIPLYCOSIA ERYTHRINA, King & Gamble. A small tree, 10 to 20 feet high; young branches twice as thick as a crow-quill, glabrous, pale-brown when dry, angled. Leaves thickly coriaceous, elliptic, the apex obtuse or sub-acute, the base acute, the edges recurved; both surfaces when dry pale-brown, the upper tinged with olivaceous, not reticulate, quite glabrous; main-nerves 2 to 3 pairs, ascending, rather straight, faint on both surfaces; length 1.5 to 2 in.; breadth 75 to 1 in.; petioles 1 in. long, stout. Racemes terminal, nearly twice as long as the leaves, with a large narrowly elliptic leaf-like bract 4 to 6 in. long, and 1 to 2 in. broad at the base of each flower-pedicel; pedicels decurved, 15 in. long in the flower, rather more than twice as long in the fruit. Flowers 4 in. long. Calyx 2 in. long, campanulate, with 5 spreading triangular acute lobes. Corolla 35 in. long, cylindric, narrowed towards the throat, glabrous; the mouth with 5 short, broad, blunt, recurved lobes. Stamens 10, slightly exserted; anthers broadly oblong, with neither apical nor basal appendages; the filaments three times as long, broadening towards the base, pubescent. Ovary inferior, its disk convex, hairy; style slightly exceeding the corolla, cylindric; stigma small, capitate. Fruit oblong-globose, 2 in. in diam., surmounted by the inflexed calyx-lobes, sub-glabrous, pericarp leathery; cells 5, each with several angular seeds. Vaccinium erythrinum, Hook. Bot. Mag. t. 4688.

PERAK, at elevations of 5,000 feet: Wray 3816; King's Collector 7349; Scortechini.-DISTRIB. Java, Sumatra.

3. PIERIS, D. Don.

Trees or shrubs, with terete branchlets. Leaves alternate, petiolate, entire or serrulate, persistent. Racemes axillary and solitary, or terminal and in panicles; pedicels bracteate and also with 1 or 2 bracteoles. Calyx free, with 5 teeth or lobes; the segments in bud open or valvate. Corolla ovoid or elongate-urceolate, with 5 short recurved teeth, white. Stamens 10; anther-cells ovoid-truncate; filaments each with 2 divaricate horns from its apex or ex-appendiculate. Ovary globose with a lobed disk, 5-celled; ovules numerous; style cylindric; stigma capitellate or truncate. Capsule globose, dry, 5-celled, with 5-valved loculicidal dehiscence. Seeds many, linear-oblong, falcate, not

winged, albuminous; testa loose.-DISTRIB. Species 10; Himalaya and the mountains of Burma and of the Malayan Peninsula.

PIERIS OVALIFOLIA, D. Don in Edinb. Phil. Journ. XVII. (1834) 159. A tree; young branches whitish-puberulous at first, afterwards black and glabrous, about a third as thick as a goose-quill. Leaves thinly coriaceous, ovate, shortly acuminate, the base broad and rounded, the edges very slightly recurved; upper surface blackish-brown when dry, glabrous, the lower of a paler brown, minutely reticulate, puberulous on the midrib and nerves; main-nerves 12 to 15 pairs, spreading, curving slightly upwards, sharply prominent on the lower surface, indistinct on the upper; length 4 to 5.25 in.; breadth 2 to 2.75 in.; petiole 25 to 3 in. long, puberulous. Racemes simple, axillary, 4 to 10 in. long, sometimes by suppression of the leaves forming a terminal false panicle, more or less pubescent; bracts 2 in. long, linear or lanceolate. Calyx-teeth connate at the base. Corolla narrowly ovoid, white. Capsule globose, glabrous, 2 in. in diam. Seeds small, linearoblong. DC. Prod. VII. 599; Loudon, Arb. Brit. 570, fig. 1070; Clarke in Hook. f. Fl. Br. Ind. III. 460. Andromeda ovalifolia, Wall. Cat. 763, and in Asiat. Research, XIII. 391 (with fig.); Don Prod. 148; Wight Ic. t. 1199; Brandis For. Flora, 280; Kurz in Journ. As. Soc. Beng., 1877, Pt. II. 216, For. Fl. Burm. II. 192. A. elliptica, Sieb. & Zucc. Fl. Jap. Fam. Nat. II. 126. Thibaudia, Griff. Ic. Pl. Asiat. t. 514.

PERAK, at an elevation of 5,000 feet: Wray 1522.-DISTRIB. Himalaya up to 8,000 ft.; Khasia Hills; Burma; Japan.

4. RHODODENDRON, Linn.

Shrubs or trees, often aromatic often scaly. Leaves coriaceous, entire, alternate, rarely sub-opposite or in false whorls, often clustered near the ends of the branches. Flowers in terminal fascicles or pseudocorymbs, rarely solitary or axillary; bracts broad, usually caducous, bracteoles linear. Calyx persistent, 5-lobed, rarely cupular, sometimes small or obsolete. Corolla campanulate, salver-shaped or funnel-shaped, the tube long or short, the limb 5- to 10-lobed. Stamens usually 10 but sometimes 5 or 18; anthers oblong, dehiscing by terminal pores. Ovary 5- to 20-celled; style long or short, filiform; stigma capitate; ovules numerous in each cell. Capsule short or elongate, always woody, 5- to 20-celled, septicidally dehiscent, the valves separating from the placentas from above downwards. Seeds numerous, ellipsoid, albuminous, the testa often crested or tailed at one end or at both. -DISTRIB. Species about 160, in mountainous parts of Europe, Asia, and North America.

Corolla widely campanulate, tubular only at the base :—
All parts glabrous, leaves not glaucous and without scales;
capsule 1 to 1.5 in. long ..

Lower surfaces of leaves glaucous, the nerves and reticula-
tions hairy; capsule 5 in. long
Corolla narrowly campanulate or funnel-shaped, the tube
inflated upwards and passing gradually into the limb; flowers
35 to 85 in. long:- -

Leaves obovate, 6 to 8 in., and rarely as much as 1 in. long:-
All parts glabrous except the inflorescence

All parts more or less scaly

1. R. javanicum.

2. R. Wrayi.

3. R. pauciflorum.

..

Leaves elliptic to elliptic-rotund, from 1.25 to 2 in. long Corolla salver-shaped, the tube much longer than the limb:Tube of corolla from 1-25 to 1·6 in. long, and about 15 in. in diam. from base to apex; leaves sub-sessile, whorled, sparsely scaly or glabrous

5. R. Scortechinii.

6. R. jasminiflorum.

Tube of corolla 2 in. long, 25 in. wide near the base, widening to 4 in. or more near the mouth; petioles ·35 to 5 in. long 7. R. longiflorum. Tube of corolla 6 in. long and about 2 in. in diam. ; petioles 4 to 6 in. long

8. R. malayanum.

9. R. dubium.

1. RHODODENDRON JAVANICUM, Benn. Pl. Jav. Rar. p. 85, t. 19. An epiphytic shrub, 3 to 8 feet long; all parts glabrous, esquamose; young branches rather thinner than a goose-quill. Leaves thinly coriaceous, elliptic or elliptic-oblong, tapering to the acute apex and base; both surfaces brown when dry (the lower rather the lighter), shining, the midrib very prominent; main-nerves about 8 or 10 pairs, interarching rather far from the edge, faint on the upper surface, obsolete on the lower, the intermediate nerves almost as prominent; length 3.5 to 5.5 in.; breadth 1.25 to 2 in.; petioles 3 to 75 in. long. Umbels terminal, 5- to 7-flowered, enveloped in bud in broadly ovate apiculate bracts; pedicels 5 to 1.5 in.; bracteoles linear. Calyx cupular, less than ·1 in. deep, the mouth wavy. Corolla red, widely campanulate, 1.25 to 1.5 in. long; the tube widely funnel-shaped, cylindric at the base; the limb 1.25. to 1.5 in. wide, with 5 large, broad, blunt spreading lobes. Stamens 10, shorter than the corolla-limb; the filaments slender; the anthers oblong. Ovary glabrous or slightly scaly (hairy in var. Teysmanni); style shorter than the stamens, clavate, hemispheric. Capsule narrowly cylindric, 1 to 1.5 in. long, and only 25 in. in diam., glabrous, slightly ridged, crowned by the whole or part of the style. DC. Prod. VII. 721; Bot. Mag. t. 4366; Fl. des Serres (1847), t. 293; Miq. Fl. Ind. Bat. II. 1057; Miq. in Ann. Mus. Lugd. Bat. I. 42, t. 1в; Clarke in Hook. f. Fl. Br. Ind. III. 463. Vireya javanica, Blume Bijdr. II. 854. MALAY PENINSULA: Lobb and others. PENANG: Ridley 129.

KEDAH: Derry 5531. PERAK: Scortechini 373, 1325; Derry 3705; Fox 129; King's Collector 2335, 3672, 6916, 7008; Wray 1023. SINGAPORE: Ridley.-DISTRIB. Sumatra, Java, Celebes.

VAR. Teysmanni, King & Gamble. Ovary densely hairy; filaments hairy near the base, corolla yellow. R. Teysmanni, Miq. Fl. Ind. Bat. Suppl. 585; Clarke in Hook. f. Fl. Br. Ind. III. 463.

PENANG: Maingay (K.D.) 1099, 10257; Curtis 530. PERAK: Wray 601, 623; King's Collector 3672.-DISTRIB. Sumatra, Java.

2. RHODODENDRON WRAYI, n. sp., King & Gamble. A bush; young branches as thick as a goose-quill, at first sparsely scaly, ultimately glabrous. Leaves very coriaceous, elliptic or sub-obovate-elliptic, the apex sub-acute, the base rounded, the edges recurved when dry; upper surface dark-brown when dry, glabrous, the midrib much. depressed; lower surface white, glaucous, with short hairs on the minute reticulations, the main-nerves, and the bold midrib; mainnerves 6 to 12 pairs, spreading, curved, rather dark-coloured and conspicuous on the lower surface, invisible on the upper; length 1.75 to 3.5 in.; breadth 85 to 1.5 in.; petioles 4 to 8 in. long, stout, scaly. Umbels terminal, 8- to 12-flowered, unequal, 5 to 75 in. long, scaly. Flower-buds enveloped in obovate-oblong apiculate bracts, the inner tomentose externally, the outer glabrous, all deciduous. Calyx cupular, 5-toothed, less than 1 in. deep. Corolla glabrous, white, tinged with pale pink and spotted in the throat, widely campanulate from a tubular base, about 1.25 in. long, and rather more in breadth at the mouth; lobes of the limb 5, broadly ovate, spreading. Stamens 10; filaments shorter than the corolla, glabrous; anthers oblong. Ovary hairy; style glabrous, longer than the stamens; stigma hemispheric, lobed. Capsule only 5 in. long and about half as much in diam., not apiculate, tomentose, ridged, 5-celled.

PERAK, at from 3,500 to 7,000 feet: Wray 322, 886, 1569; Scortechini.

3. RHODODENDRON PAUCIFLORUM, n. sp., King & Gamble. A small shrub, all parts except the inflorescence glabrous; young branches as thick as a crow-quill, smooth. Leaves coriaceous, obovate, rarely rotund-obovate, the apex broad, usually minutely retuse, the base much narrowed, the edges recurved; upper surface olivaceous, the lower brown when dry; the midrib stout and prominent on the lower surface,* depressed on the upper (when dry); main-nerves 3 or 4 pairs, indistinct on both surfaces; length 6 to 1 in.; breadth 4 to 65 in.; petioles less than 1 in. long. Flowers 1 or 2, terminal; their pedicels pubescent, 25 to 6 in. long, with 1 or 2 loose sheathing deciduous bracts at their bases. Calyx cupular, about 1 in. long, obscurely toothed. Corolla

bright red, infundibuliform-campanulate, 2 to 3 in. wide at the throat and from 5 to 85 in. long; the limb spreading, 5 to 75 in. across, divided into 5, broad, blunt lobes, the tube 35 to 5 in. long. Capsule unknown.

PERAK, on Gunong Batu Pateh at an elevation of 4,500 feet: Wray 231; Scortechini 345B.

4. RHODODENDRON PERAKENSE, n. sp., King & Gamble. Epiphytic; a small shrub with very scaly young branches as thick as a crow-quill. Leaves very coriaceous, obovate or broadly oblanceolate, obtuse, much narrowed to the base, the edges recurved; upper surface olivaceous when dry, at first with a few large scales but ultimately glabrous, reticulate, the midrib depressed; lower surface dark brown, with persistent large dark scales in pits, the midrib very thick and prominent; main-nerves 2 (rarely 3) pairs, spreading, very prominent on the under surface, and, like the midrib, with persistent large dark scales; length 6 to 8 in.; breadth 3 to 4 in.; petioles about 1 in. long. Umbels terminal, 3- to 5-flowered, covered in bud by broad rounded deciduous bracts with ciliate edges; pedicels 25 to 3 in. long, slightly scaly. Flowers 35 to 4 in. long. Calyx shallow, cupular, its edges wavy. Corolla bright yellow, narrowly campanulate, the mouth with broad, slightly spreading lobes. Stamens not exserted; filaments glabrous, anthers short. Ovary sub-glabrous; style not exserted; stigma clavate, truncate. Capsule 3 in. long, dehiscing by 5 straight untwisted valves.

PERAK, at an elevation of 7,000 feet: Wray 1574.

5. RHODODENDRON SCORTECHINII, n. sp., King & Gamble. Shrubby, epiphytic or terrestrial, when the latter sometimes sub-arboreous; young branches half as thick as a goose-quill, smooth, terete. Leaves very coriaceous, elliptic to elliptic-rotund or obovate, the apex obtuse and sometimes faintly notched, the base cuneate, the edges recurved; upper surface dark olivaceous-brown when dry, glabrous, shining, depressed-reticulate; lower surface of a uniform warm brown, not reticulate, pitted and minutely scaly; main-nerves 4 to 6 pairs, spreading, depressed on the upper surface, and raised on the lower (sometimes very much so); midrib much depressed on the upper surface and prominent on the lower (when dry); length 1-25 to 2 in.; breadth *.75 to 1.25 in.; petioles 1 to 15 in. long, scaly. Umbels terminal, 4- to 7-flowered; the pedicels unequal, 5 to 1 in. long (longer in fruit). Flowers about 75 in. long. Calyx short, cupular, with many rounded teeth. Corolla yellow (sometimes very pale), 75 in. long, widely funnel-shaped, the mouth about 6 in. across, with 5 deep, broadly ovate, slightly spreading lobes, the outer surface with many dark