248 scrophularine.t:. [Plerostigrna. 



Lower sepal lanceolate, 4 lines long when in flower, 6 to 7 lines when in fruit, 

 the 4 upper sepals linear and rather shorter. Corolla 1 in. long. Cells of the 

 upper pair of anthers fertile and equal, those of the lower pair small and gland- 

 like. 



Common on hillsides, Chaminon and others. Only known from S. China. 



2. P. capitatum, Bmtli. in DC. Prod. x. 380. An erect stiff simple or 

 branching annual, usually about 1 ft. high. Leaves varying from ovate to 

 oblong or lanceolate, obtuse, crenate, the larger ones usually oblong, 1 to 2 

 in. long, but sometimes all small and ovate. Flowers about 3| lines long, of 

 a bluish-purple, with a purple palate, in dense terminal clammj^ heads, globu- 

 lar or oblong, ^ to 1^ in. long. Lov>-er sepal lanceolate, the others linear, nearly 

 as long as the corolla. Anthers of the upper pair with one cell rather smaller 

 than the other, those of the lower pair with only one cell. 



Along ditches, Champion ; also Hanee. Common in India from Ceylon and the Peninsula 

 to the Archipelago, and northwards to tlie Himalaya and S. China. 



4. LIMI^OPHILA, E. Br. 



Calyx deeply 5-lobed or divided into 5 distinct sepals of equal size, or the 

 lowest rather larger. Corolla with a spreading more or less 2-lipped limb, 

 the upper lip emarginate or 2-lobed, the lower 3-lobed. Stamens 4, shorter 

 than the corolla ; the anther-cells all perfect and separate from each other, 

 usually stipitate. Style bent downwards at the top, dilated, entire or 2-lobed, 

 often winged at the bend. Capsule ovoid or globose, opening loculicidally in 

 2 valves, more or less bifid, leaving a broad free central placenta. — Herbs 

 usually aquatic or growing in marshes, more or less marked with pellucid 

 dots. Leaves opposite or whorled, undivided in the Hongkong species, in 

 some other aquatic species the lower submerged ones divided into filiform 

 segments. Flowers solitary and axillary, or in terminal or axillary racemes, 

 usually with 2 bracteoles under the calyx. 



A considerable genus, chiefly tropical and hmited to the Old World. 



Stem haiiy 1. X. hirsuta. 



Whole plant glabrons 2. Z. punctata. 



1. L. hirsuta, BentJi. in DC. Prod. x. 388. Stems decumbent and root- 

 ing at the base, ascending to a foot or more in height, and more or less hairy. 

 Leaves sessile or nearly so, opposite, or in whorls of 3 or 4, oblong, and 1 to 

 2 in. long, or the lower ones obovate, naiTowed or stem-clasping at the base, 

 glabrous or hairy, the upper ones small and narrow. Flowers 6 to 8 lines 

 long, in terminal racemes, the pedicels shorter than the floral leaves or bracts. 

 Calyx-segments lanceolate-subulate. 



Hongkong, Hance. On the edge of a ])ond east of the Happy Valley, WiJford. Spread 

 over India from Ceylon and the Peninsula to the Archipelago, and northward to the Himalaya 

 and S. China. 



2. L. punctata, Blume ; Benth. in DC. Prod. x. 388. An erect or 

 ascending glabrous annual (or sometimes perennial ?) from 6 in. to 1 ft. or 

 more in height. Leaves sessile and stem-clasping, oblong-lanceolate, serrate, 

 1 to 1^ or even 2 in. long, the upper ones smaller. Flowers in the ordinary 

 iorni 7 to 8 lines long, all axillary, on pedicels scarcely shorter than the floral 

 leaves. Sepals lanceolate, acuminate, not half so long as the corolla. 



