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Plate 40] POLEMONIUM UTRICULARIA 75<br />

shorter than the calyx. Calyx bell-shaped, lobes egg-shaped or<br />

lance-shaped-oblong. Corolla blue, sometimes white, 2-3 times<br />

longer than the calyx, 1 in. diameter or more. Stamens 5,<br />

attached near the base of the corolla, bearded at the base,<br />

generally as long as the corolla. Style slightly longer than<br />

the corolla. Capsule in. -J- long, ellipsoid, overtopped by the<br />

persistent calyx. Seeds x^ in - long, many, oblong, smooth,<br />

black, not winged.<br />

Flowers. May to August.<br />

Locality. Gulmarg, fir forests, above 8,000-8,700 ft., very<br />

common<br />

;<br />

Tangmarg, forests 7,200-8,700 ft. ; below Tosh<br />

Maidan, 9,600 ft. ;<br />

Basam Gali in Juniper tract, above<br />

10,000 ft.<br />

Distribution. Alpine W. Himalaya, 7,000-12,000 ft., from<br />

Kashmir to Kumaon, Central and N. Asia, Europe. N. America.<br />

LENTIBULARIACEAE.<br />

The Butterwort Family.<br />

(Derived from lens, a lentil, and tubulus, a small tube, in allusion<br />

to the lenticular shape of the air-bladders borne on the leaves of<br />

many species.)<br />

UTRICULARIA, Linn.<br />

The Bladderworts.<br />

(From utriculus, a small bo.g or bottle made from an animal's hide?<br />

so named from the bladders connected with the leaves.)<br />

A. In water.<br />

I. Stems stout. Leaves li-3 in. long ... U. flexuosa.<br />

II.<br />

Stems very slender.<br />

1 . Leaves not much dissected, about i in.<br />

long. Corolla yellow with darker<br />

streaks<br />

U. exoleta.<br />

2. Leaves much dissected. Corolla pale<br />

yellow... ... ... ... ... U. minor.<br />

B. On land ... ... ... ... ... U. striatula.<br />

Fig. 6. Utricularia flexuosa, Vahl. Bladderwort.<br />

Coventry, pi. XXXIX.<br />

(Flexuosa means full of windings, tortuous, alluding<br />

to the stem.)<br />

An aquatic herb, all, except the inflorescence, under water.<br />

Stolons stout, much-branched and often very long. Leaves<br />

14 to 3 in. long, usually in whorls of 4, pinnately divided into<br />

many filiform comblike segments, each leaflet usually bearing<br />

at its base a small, almost globose bladder which becomes

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