710 Flora of the Malayan Peninsula. 



7. Dysophylla, B1. 



Herbs. Leaves opposite or whorled. Floioers minute, in dense 

 long spikes composed of numerous close-set many-flowered cymes. 

 Calyx minute, ovoid, 5-toothed ; teeth subequal ; throat naked within. 

 Corolla minute ; tube exserted or included, limb equally 4-fid ; upper 

 lobe entire or notched, lower spreading, Stamens 4, exserted, straight 

 or nearly so ; filaments bearded, very long ; anther-cells confluent. 

 Disk equal, subentire. Style 2-fid. Nutlets ovoid or oblong, smooth or 

 granulate. — Disteib. Species about 15, in Tropics of Old World and 

 Australia. 



Dysophylla aueiculaeia, Blume Bijdr. 826 (1826). A coarse annual 

 herb. Stems laxly branched, rarely simple, 1 to 2 ft. high, pubescent 

 with spreading hairs. Leaves opposite, membranous, rather pale-green, 

 especially beneath, with numerou.s scattered hairs above and with 

 similar hairs on the nerves beneath, ovate or oblong-ovate, acute or 

 rarely obtuse, with entire cuneate or rounded base ; margins elsewhere 

 coarsely serrate ; 1 to 2-75 in. long, -5 to 1 in. wide ; petiole 4 to "4 in. 

 long. Floivers in villous cylindric terminal spikes 1'5 to 3 in. long, 

 •2 to "35 in. in diam. ; whorls of cymes close-set throughout. Calyx 

 in fruit -1 in. long, subcampanulate, gland-dotted ; teeth subequal, tri- 

 angular, incurved over the nutlets. Corolla "1 in. long, pinkish ; tube 

 slender, much exserted ; lobes short, pubescent. Filaments exserted, 

 densely villous. Nutlets ellipsoid, almost smooth. Benth. Lab. Gen. 

 & Sp. 158, in DC. Prodr. XII. 156, and in Wah. PL As. Ear. I. 30; Wah. 

 Cat. 1548 ; Wight Ic. t. 1445 ; Hook. f. Fl. Br. Ind. IV. 638. Meiitha 

 auricidaria, Linn. Mant. 81 ; Eoxb. Fl. Ind. III. 4 ; Griff. Notul. 

 IV. 200. M. fcBtida, Burm. Fl. Ind. 126. 



In all the provinces. — Disteib. Throughout South-east Asia. 



8. Mentha, Linn. 



Strongly scented perennial herbs with creeping rootstocks. Floivers 

 small, in usually many-flowered terminal spikes or axillary whorls ; 

 bracts small or large. Calyx tubular or campanulate, 10-ribbed, 

 5-toothed; teeth subequal. Corolla-ttcbe mivuxdibuliioTui, short ; lobes 4, 

 the uppermost rather wider than the other three, emarginate. Stamens 

 4, usually dimorphic, subequal ; filaments free, erect, distant ; anthers 

 2-celled ; cells parallel. Disk entire, uniform. Style-arms short, sub- 

 equal. Nutlets ovoid, smooth or reticulate. — Disteib. Species variously 

 estimated — perhaps not more than 80 in reality — mainly in North 

 Temperate regions, but some noAV widely dispersed in all parts of tlie 

 v.'orld. 



Mentha .tavanica, Blume Bijdr. 826 (1826). A prostrate herb, rooting 



