86 Vasculares. 
the boughs is highly esteemed in domestic practice for 
its efficacy in subduing colds. Turpentine like that 
of all other species of Conifere stimulant, rubefacient, 
and diuretic. 
1387. P. nigra, 4:%. Black spruce. May. Large pyramidal 
tree. Swamps. Mich. Eat. 
1388. P. alba, 4it. White spruce. May. Small tree. Swamps. 
Ky. St. | 
*** Leaves many in a fascicle, deciduous. LaRtx. 
1389. P. pendula, dit. Tamarack. Hackmatack. Ap.—May. 
Middle-sized tree. Swamps. East Ohio. Bark tonie 
and diuretic, very highly esteemed by some practi- 
tioners. : 
CLASS I.—ENDOGENE. 
Tre I. PreratomwEx.—Calyx and corolla developed in 3 or 6 
divisions ; if absent, stamens and pistils naked. 
CCXXIX. ALISMACE/E—THE WATER PLANTAIN TRIBE. 
1390. Alisma plantago, Linn. Water plantain. July—Aug. wo. 
1 to2f. 2%. mh. pl. W. One of the reputed remedies 
for hydrophobia. Lind. 251. 
1391. Sagittaria sagittifolia, Willd.. Arrow-head. Arrow-leaf. 
July-Aug. w. lto2f. Y. mh. pl. O. Ky. 
b. var. latifolia, Torr. Leaves broad, rather obtuse. O. 
c. var. hastata, Jorr. Leaves subhastate. O. 
d. var. gracilis, Torr. Leaves linear hastate. Dayton, O. 
1392. S. obtusa, Willd. Blunt arrow-leaf. July. w. 1 to 2f. 
4%. mh. wp. Ditches, &c.O. 
1393. S. pusilla, Vuit, Aug. 2to4i. 4%. Muddy banks. Ky. 
St. 
CCXXXI. HYDROCHARIDE/E.—THE FROG-BIT TRIBE. 
1394. Udora canadensis, Vutt. Ditch moss. Aug. w. Sub- . 
mersed, Lto2f. 2%. pl. Ohio. Ky. 
1395. Vallisneria spiralis, var. americana, Torr. Tape grass. 
Aug. w. lto4f. X. In the still waters of rivers. W. 
CCXXXII. COMMELINE.—THE sPIDER-WORT TRIBE. 
1396. Commelina communis, Linn. Commelina. Aug. 6. O- 
Ky. St. 
1397. C. virginica, Linn. July. 6. 2f. 4%. Woods. Ky. St. 
1398. Tradescantia virginica, Linn. Spider-wort. May-July. 
p. Lf. Y&. sw. dp. O. Ky. Fig. Bart. Fl. N. A. ii. 17. 
ee 
