Polemonium.] xcvnr. PoLEMONiAcEE. (C. B. Clarke.) 133 
Orprr XCVIII. POLEMONIACEZJE. (By C. B. Clarke.) 
Herbs, shrubs, or trees. Leaves exstipulate. Flowers showy, regular, her- 
maphrodite, 5-merous. Calyx inferior. Corolla gamopetalous, lobes twisted to 
the right. Stamens 5, on the corolla-tube, alternate with its lobes. Ovary 
Superior, 3-celled; style simple, shortly 3-fid; ovules very many. 
septicidal, 3-valved. Seeds many, albuminous ; embryo straight.—Species 150; 
in America, a very few in N. Asia and Europe. 
1. POLEMONIUM, Linn. 
Perennial herbs. Leaves alternate, pinnate. es terminal, corymbose. 
Flowers blue. Calyx campanulate, lobed halfway down scarcely ribbed. 
Corolla funnel-shaped, lobes patent obovate. Stamens attached near the base 
of the corolla ; filaments declinate, hairy, appendaged at the base. Ovary and 
capsule ovoid. Seeds not or obscurely winged ; testa, when wetted, becoming 
mucilaginous and breaking up elastically into spiral threads.—Species 8; from 
Europe, N. and Central Asia, N. America to Mexico and Chili. 
P. ceruleum, Linn.; Benth. in DC. Prodr. ix. 317 ; stem erect leafy, 
leaflets lanceolate or ovate-lanceolate, flowers many corymbose, calyx-lobes 
Ovate or lanceolate-oblohg scarcely acute, corolla 2—3-times longer than the 
Calyx. Gaertn. Fruct. i. 299, t. 62; Lamk. Il. t. 106 ; Wall. Cat. 1471; Syme 
Engl. Bot. iii. t. 922; Boiss. Fl. Orient. iv. 83. 
ALPINE Western HIMALAYA, alt. 9-12,000 ft. ; from Kashmir to Kumaon, frequent, 
—Distrie. Europe, N. and Central Asia, N. America. . 
Stems 1-4 ft., viscous hairy or glabrescent. Leaves 5 by 3 in., leaflets 14 by 3 in. 
lowers often clustered; corolla 1 in. diam. or more, a fine blue. Capsule } in., 
ellipsoid, much overtopped by the persistent calyx. Seeds 3, in., oblong-ellipsoid, 
Smooth, not winged (in the Indian plant).—The Himalayan, like the European plant, 
18 tall with narrow leaflets. 
OR»zR XCIX, HYDROPHYLLACEZ. (By C. B. Clarke.) 
Differ from Gentianacee by the alternate leaves and imbricate corolla-lobes. 
The single Indian genus, forming by itself the tribe Hydrolee, is easily known 
rom Gentianacee by its 2 styles distinct from the base with capitate stigmas.—Species 
50, mainly American, 3 or 4 only in the Old World. 
1. HYDROLEA, Jinn. 
Herbs. Leaves alternate, entire. Flowers blue, in short terminal racemes 
Or Cymes, regular, 5-merous. Calyx divided nearly to the base, segments lan- 
Ceolate, Corolla widely campanulate, subrotate, lobes imbricate. Stamens 5, 
attached to the short corolla-tube, alternate with its lobes, filaments filiform 
often dilated at the base ; anthers sagittate, oblong. Ovary completely 2-celled ; 
styles 2, distinct, stigmas capitate; ovules very many. Capsule globose or 
void, septicidal or irregularly 4-valved. Seeds minute. 
H. zeylanica, Vahl Symb. ii. 46; annual, unarmed, leaves lanceolate, 
flowers racemed on short lateral branches, calyx-lobes lanceolate striate exceed- 
‘ng the capsule. Lamk. Il. t. 184; Wall. Cat. 4398 ; W.§ A. in Hook, Comp. 
