SCIENTIFIC AND POIULAE. 215 



a. L. Ldppiila (L. ) Karst. (M. Lappula L., E. Lappula Lehm. 



(Kew)), L.Myosotis Moench). Europe and Asia, nat. in 

 tl. S. European Stickseed, Bur-seed, Small Slieep-bur, Stick- 

 tight. 



b. L. Virginiiiiia (L. ) Greene (M. Virginiana L., E. Virginicum 



Lehm., C Morrison i DC. ). Canada and eastern U. S Vir- 

 ginia Stickseed, Stick-tight, Beggar' s-lice. Beggar' s-ticks, 

 l3ysentery-vveed. Dysentery-root, Small Sheep-bur, Soldiers, 

 Virginia Mouse-ear. Eool astringent, demulcent. 



1138. LARIX, Adans. Larch. - Piiiaceae. 



Ancient Latin name, probably from Celtic. Syn. Binusf, 

 Abies, in part. Trees with deciduous needle-like leaves. 

 About 9 species, north temperate zone and northward; 3 inU. S. 



a. L. Americana (Muench) Michx. (P. Larix Americana nigra 



Muench 1770, L. lariciua (DuRoi) Koch. (Brit. & Brown), 

 P. laricina DuKoi 1771, P. pendula Ait., L. pendula Salisb., 

 P. microcarpa Lamb'. ). British America, south to New Jersey, 

 Indiana and Minnesota. Tamarack, American Larch, Hack- 

 matack (Hackraetackj Hacmatac, Hacmack), Blai^k or Red 

 Larch, Cypress*, Juniper*. Bark used like that of (b). 



b. L. Ldrix (L. ) Karst. (P. Larix L., L. Europsea DC. (Kew), 



A. Larix Lam., L. decidua Mill. ). Europe. European Larch. 

 Bark, Laricis cortex Br. ; (ier. Larchenrinde; Fr. Ecorce de 

 m^leze; astringent, terebinthinate. Oleoresino as exudate, Venice 

 Turpentine; Terebinthina laricina v. laricis v. veneta; Ger. 

 Larchen-terpenthin; Fr. Terebenthine de Venise (Codex); bal- 

 samic, antiseptic. Saccharine exudate, Briangon Manna. 



c. L. oceidentalis Nntt. (P. Nuttallii Pari. ). Northeastern U.S. 



Western Larch or Tamarack. Exudate from wounds in trunk 

 sweetish, eaten by the Indians. 



d. L. Sibirica Ledeb. Northern Europe. Siberian Larch. 



Source of much of the European tar. See Pinus palustris. 



1139. LASERPITIUM, L. Laserwort. Umbelliferae. 



Latin name ot L. latifolium, the ''Laser" plant. Perennial 

 herbs. About 20 species, chietiy of southern Europe. 



a. L. latifolium L. Europe. White Gentian, Herb-frankincense, 

 Broad-leaved Laserpitium or Laserwort. Root; Radix gentianse 

 albse, R. cervarise albse; Ger. Wei&ser Enzian, Laserkrautwur- 

 zel; bitter tonic. Gum resin, called Laser, acrid, bitter, re- 

 puted purgative. 



1140. L ASTHENIA, Cass. Lasthenia. Conipositae. 



Named for Lasthenia, a pupil of Plato. Syn. Bajria, Crocke- 

 ria, Orobus, in part. Herbs; mostly annual. About 7 species, 

 southwestern U. S. 



1141. LATHYRUS,L. Vetchling,MarshPea,etc.FapilioDaceae. 



Ancient Greek name of a Vetch. Syn. Pisum, Orobus, in 

 part. Herbs, mostly climbing by tendrils. About 110 species, 

 northern hemisphere and S. America; 36 in U. S. 



