1902.] G. King — Materials for a Flora of the Malayan Peninsula. 73 



Leaves alternate ; bracts of the inflorescence dimorphous 1. M, hracteata. 



Leaves alternate or opposite : — 



Bracts of the inflorescence all small, triangular, con- 

 cave, pubernlous, not in whorls ... ... 2. M, Scortechinii, 



Bracts of inflorescence in whorls at the base of the 

 flower-pedicels, broad ... ... ... 3. M. gracilis. 



Leaves opposite : — 



Flowers 5-merous ... ... ... ... 4. M. Maingayi. 



Flowers 4-nierou8 ... ... ... ... 5. M. Clarkeana. 



1. Masttxia bracteata, Clarke in Hook. fil. Fl. Br. Ind. II, 746. 

 A tree 40 or 50 feet high : young branches slender, glabrous. Leaves 

 alternate, thinly coriaceous, olivaceous-green when dry, abruptly bluntly 

 and shortly acuminate, the base cuneate ; both surfaces glabrous, the 

 lower faintly reticulate ; main-nerves 5 or 6 pairs, ascending, curved^ 

 impressed on the upper but prominent on the lower surface: length 

 1*75 to 3 in. ; breadth '75 to 1*36 in. ; petiole '25 to '5 in. Cymes ter- 

 minal, *75 to 1*5 in. long, branching, many-flowered, bracteate; the 

 bracts of two sorts ; those at the bases of the branches linear-oblong* 

 blunt, l-nerved, glabrous, longer than the flowers; those at the bases 

 of the flowers much smaller, lanceolate, puberulous. Flowers a little 

 over '1 in. long. Calyx funnel-shaped, the tube adpressed-silky outside ; 

 the mouth expanded, glabrous, wavy but scarcely distiinctly toothed, 

 Corolla hemispheric in bud : petals adnate by their edges, broadly ovate, 

 silky externally. Anthers 5, broadly ovate, cordate at the base ; fila- 

 ments short. Disc large, fleshy, 6-toothed, each tooth with an oblong 

 depression in the middle. Style short, grooved. Fruit unknown. 



Malacca: Maingay (K.D.) 710. Perak: Kunstler 6SS0. 



2. Mastixia Scortechinii, King n. sp. A small tree; young bran- 

 ches slender, angled, glabrous. Leaves coriaceous, elliptic-oblong or 

 oblaneeolate, much attenuate to the base, the apex shortly and bluntly 

 acuminate ; both surfaces glabrous, pale olivaceous when dry, the lower 

 the palest; main- nerves 4 or 5 pairs, ascending, slender ; length 1*75 to 

 2*5 in. ; breadth -85 to 1*25 in. ; petiole '25 to '5 in. Cymes corymbose, 

 terminal, several together, 1*25 to 1'75 in. long, puberulous ; the 

 branches short, angled; bracts at the bases of the branches and of the 

 flowers similar, small, triangular, concave, puberulous. Flowers sessile ; 

 calyx-tube narrowly campanulate, the mouth with 5 distinct triangular 

 teeth. Corolla depressed-globose in bud. Petals 5, puberulous outside, 

 ovate, acute. Stamens 5 : anthers broadly ovate, cordate at the base : 

 filaments short. Disc fleshy, cushion-like, with 5 short lobes. Ovary 

 1-celled ; style short, grooved, stigma peltate. Fruit unknown. M. brac^ 

 teata Scortechini MSS. (not of Clarke). 



Perak : Scortechini 1971. 

 J. II. 10 



