122 DROSERACEAE. | Drosera. 
71. B. calycinum, Salish. — DC. Prod. III, 396. — A glabrous, erect, 
succulent perennial, 2—5 ft. high. Leaves opposite, flat, fleshy, 
or ovate-oblong, 3—5‘ long, deeply crenate, rarely lobed. Rigi 
green, tinged with reddish-yellow, nodding, in a loose terminal panicle, 
the inflated calyx 1—1'/2’ long, the corolla longer. — Bot. Mag. tab. 1409. 
— Benth. Fl. Hongk. p. 127. 
In lava-fields of Kaw‘ Hawaii, along the Kona road. — The well known Air-plant, 
a native of popes Africa, but spread over various parts of Fok. and Asia. Of 
recent introducti 
Orper XXIX. DROSERACEAE. 
Sepals or lobes of calyx 4 or 5, imbricate. Petals 5, hypogynous, rarely 
perigynous, imbricate, withering-persistent. Stamens 4—20, hypogynous 
or perigynous, the anthers opening on the outer side. Ovary free or 
nearly so, 1—5-celled, with mostly parietal or basilar placentas. Styles 
1—5, often bifid or multifid. Ovules numerous, anatropous. Capsule 
membranous, splitting loculicidally into 2—5 valves. — Embryo straight, in 
ne axis or at the base of albumen. — Bog-herbs with usually glandular- 
aired leaves which yaae are irritable and secrete a digestive principle 
Kindred to pepsine. (See Ch. Darwin, On insectivorous plants, 1875.) 
mall Order of 5 local genera and the following large and widely diffused one. 
1. DROSERA, L. 
Sepals usually 5, shortly united at the base, persistent. Petals as many, 
hypogynous or perigynous, mostly conyolute in the bud, withering-persi- 
stent. Stamens as many, inserted with the petals. Ovary 1-celled, with 
3—5 parietal placentas and several ovules to each. Styles as many as 
times lengthening out into leafy stems. Leaves either radical or alter- 
nate, more or less covered with long glandular hairs or bristles, rolled 
up in the bud. oo radical or axillary, terminating in a simple 
or forked one-sided sp 
A considerable genus, $i in nearly all parts of the world. 
1. D. longifolia, Z. — Roots-tock short. Leaves radical, spathulate- 
oblong, obtuse, 2—3‘ long, including the long erect and naked petiole 
into which the short narrow blade gradually tapers, the spreading glan- 
dular bristles of the latter as long as its width. Scapes radical, erect, 
twice as long as the leaves, oe before evolution, racemosely few- 
flowered near the end, naked, or rarely bearing a small leaflet above the 
middle; the short filiform caducous bracts irregular between the flowers, 
not at the base of the pedicels. Calyx campanulate, 2—3”, parted 7/s 
