188 
XXXIV. DR0SERACE2E 
numerous. Capsule enclosed within the persistent calyx and 
corolla, 3-valved ; seeds minute, attached to the valves. (Fig. 55.) 
Simla, common on pasture lands and banks ; August, September. — Tem- 
perate Himalaya, 4000-8000 ft. — Hilly regions throughout India. 
Darwin by the publication of his Insectivorous Plants (1875) has added 
greatly to the interest of the Sundews. At| Simla it is impossible to find a plant 
without some captured insects or their remains entangled on the leaves. 
XXXV. HALORRHAGIDACEAE 
Weak, flaccid herbs, growing in water or on mud. Leaves 
opposite or whorled, simple or pinnately divided ; stipules none. 
Flowers minute, 1-sexual, regular or incomplete, spicate or 
axillary. Calyx-tube adnate to the ovary ; limb usually 4-toothed. 
Petals 4 or none. Stamens 8 or only one ; anthers 2-celled. 
Ovary inferior, 4-celled ; ovule solitary in each cell. Fruit a 
minute, oblong or orbicular capsule, dividing when ripe into 4 
one-seeded nuts. — Nearly all regions. — Origin of name obscure. 
Leaves whorled, pinnately divided. Flowers in a terminal 
spike .......... 1. Myriophyllum. 
Leaves opposite, undivided. Flowers axillary . . .2. Callitriche. 
1. MYRIOPHYLLUM. From the Greek murion, many, and 
phyllon, a leaf. — Nearly all regions ; most numerous in Australia. 
Myriophyllum spicatum, Linn. ; FI. Br. Ind. ii. 433. A 
glabrous, nearly submerged herb, the flower-spikes only appearing 
above the surface ; stems leafy, varying in length according to 
the depth of water, more or less branched. Leaves whorled, 
usually in fours, pinnately divided; segments simple, distinct, 
hair-like, in. Flowers sessile, in whorls of about 4 forming 
slender, terminal spikes ; each flower surrounded by 1 large and 2 
minute bracts ; upper flowers male, lower female. Male flowers : 
calyx 4-toothed ; petals 4, concave ; stamens 8, filaments short ; 
ovary rudimentary. Female flowers : calyx 4-grooved, teeth 4, 
minute ; petals minute or none ; stigmas 4, nearly sessile. Fruit 
oblong, dividing into 2 or 4 nutlets. 
Simla, the Glen; June- August. — W. Himalaya, 1000-6000 ft.— Afghanistan. 
— N. temperate and cold regions. (Britain, Water Milfoil.) 
2. CALLITRICHE. From the Greek halos , beautiful, and thrix, 
trichos, hair ; referring to the stems. — Nearly all regions (Britain, 
Water Starwort). 
