253 



Lactai-itis subdulcis, 203^ 



tlieiogalus, 201\ 



torminosus, 201*. 



trivialis, 202\ 



uvidus, 201°. 



vellerus, 202^ 

 Lactuca Canadensis, 110°. 



leucophaea, llO**. 



spicata, 110^ 

 Ladies slipper, purple, 131*. 



stemless, 131*. 

 Ladies tresses, hooded, 130*. 



slender, 130". 

 Lady's thumb, 121-. 

 Lambkill, 113^ 

 Lamb's quarters, 119". 

 Laportea Canadensis, 122^. 

 Larch, American, 128^ 

 Larix Americana, 128'. 



laricina, 128". 

 Laurel, pale, 113\ 



sheep, 113^ 



swamp, 118^ 

 Leather leaf, 113-. 

 Leatherwood, 121". 

 Ijecanora atra, 186^ 



elatine, 186'. 



ochrophaea, 186^ 



pallescens, 186^ 



pallida, 186^ 



angulosa, 186'. 

 cancriformis, 186^. 



subfusca, 186*. 



allophana, 186*. 

 argentata, 186^ 



varia, 186". 



symmicta, 186". 

 Lecanoraceae, 186^-87*. 

 Lecidea contigua, 190^. 

 Lecideaceae, 189=^-90". 

 Ledum Groenlandicum, 70*, 113'. 



latifolium, 113^ 

 Leguminosae, 85^-86°. 

 Lentibulaceae, 117^ 

 Lentinus cochleatus, 206'. 



Lecomtei, 205^ 



Lentinus lepideus, 205^-6^ 

 umbilicatus, 206\ 

 ursinus, 206*. 

 Lenzites betulina, 206'. 

 heteromorpha, 206°-7\ 

 sepiaria, 206'. 

 vialis, 206^ 

 Leotia lubrica, 233\ 

 Lepidium apetalum, 79^ 



Virginicum, 79^ 

 Lepidozia reptans, 177*. 

 Lepiota, tall, 192'. 



Lepiota acerina, 192^ 

 acutesquamosa, 192^ 

 amianthina, 193\ 

 cristata, 192'. 

 felina, 192'. 

 granulosa, 192^ 

 illinita, 193'. 

 metulaespora, 192". 

 procera, 192'. 

 Leptobryum pyriforme, 165^ 

 Leptogium myochroum saturninum, 

 185^ 

 tremelloides, 185^ 

 Leptoglossum luteum, 230^. 

 Leptonia serrulata, 208-. 

 Leptostromaceae, 235'. 

 Leptothyrium Periclymeni, 235'. 

 Leptotrichum tortile, 162*. 



vaginans, 162^ 

 Lesquereux & James. Manual of 



North American masses, 71'. 

 Lettuce, tall blue, 110". 

 tall white, 109". 

 white, 109'. 

 wild, 110^ 

 Leucobryum vulgare, 161°. 

 Leucodon julaceus, 169^ 

 Leucosporae, 19r-207-. 

 Lichens, 71', 72-, 180-90. 

 Liliaceae, 13r-33". 

 Lily-of-the-valley, false, 132'. 

 Limnobium, 175'. 

 Linden, American, 83'. 

 Linnaea borealis, 101^ 



