Index 



Lichens, retainers of rainfall, 16 

 of soil, 13 

 of water, 16 



Rock Tripe, colour plate XI., 85 

 ruffled on support, 8 

 Scarlet-crested Cladonia, The, colour 



plate XII., 89 

 scutellseform, 80 

 secrete acid, 4 

 sections of thallus, 80 (cut) 

 "silver spots" Ruskin, 3 

 "slow fingered," 10 

 soredia, 82 



sought for medicinal properties, 19, 20 

 source of brooks, 16 

 spontaneous generation of, 22 

 starch, 20 

 Stereocaulon, genus, 88 



paschale, plate VIII., 88 

 tomentosum, 88 

 Sticta, genus, 86, 87 



amplissima, colour plate VII., 87 

 pulmonaria, colour plate, VII., 87 

 Stictina fuliginosa, 87 (cut) 

 surface, hoary, 25 

 flat disks, 25 

 ruptured, 24 

 with knobs, 25 

 Thelochistes, genus, 81 



parietinus, colour plate II., 81 

 true nature of, 22 

 Umbilicaria, genus, 84, 85 

 Dillenii, 85 



Muhlenbergii, colour plate XI., 85 

 pustulata, 84 



veiled, colour plate XI., 85 

 uniform distribution of alga, 29 

 Usnea, genus, 80 

 barbata, 80 



cross sections of thallus, 80 (cut) 

 trichodea, 81 



vertical section of thallus, 80 (cut) 

 what they are doing on rocks and trees, 8 

 which yield a dye, 19 

 with coloured disks or cushioned, 8 



concentric edges, 25 



work done under primitive conditions, 14. 

 Wrinkled Parmelia, The, 83 

 Xanthoria parietina, colour plate II.,8i 

 Yellow Wall-lichen, The, colour plate 



II.. So 



yielding litmus, 19 

 Lid, 35 



defined, 36 

 development of, 51 

 origin of, 49 



with columella attached, 55 

 Limestone, 17, 144 

 Limnobium molle, in turbid water of glaciers, 



15 



Linnaeus, Carolus, 109, 136, 261 

 Little -beard Moss, 172 

 Little Fork-Mosses, 150 

 Litmus, how obtained, a test for acid and 



alkalies, 19 

 Liverworts, 93 



pioneers, 17 

 Lobe, 99 (cut) 

 Lobule, 99 (cut), 102 (cut) 

 Lowell, James Russell, 27, 29 

 Luminous moss, 34 



power of conveying light, 34 

 Lungwort, 29 

 Lycopodiums, 69, 71 



Male flowers-cluster, vertical section, 49 



(cut) 



Male flowers, 125 

 Mammillatc, 221 

 Manna, lichen, 20 



Manna of Israelites, 20 

 Marchantia, genus, 19, 93, 98 

 polymorplia, 93-98 (cuts) 



surface view of pore, 72 (cut) 



vertical section of pore, 72 (cut) 

 Marsh building on Mt. Marcy, 17 

 Medulla, 80 

 Medullary layer, 82 

 Membrane, 33 (cut), 56 

 Mica, 74 

 Minute structure, how to gain a knowledge 



of, 62 



Mnium, genus, 225-234 

 affine, 10, 229 



anmilus, 231, (cut) 



apex of leaf. 225, 231 (cut) 



leaves, 230 



lid, 231 (cut), 52 



male plant, 230 (cut) 



perigonial leaf, 231 (cut) 



peristome, 227 (cut), 231 (cut) 



spore-case with lid, 52 (cut) 



spore-cases, 231 (cut) 



stem, 230 (cut) 



tuft, 230 (cut) 

 cuspidatum, 226-230 



annulus, 228 (cut) 



apex of leaf, 226 (cut) 

 of leaves, 229 (cut) 



border of leaf, 226 (cut) 



inner membrane, 226 (cut), 339 

 (cut) 



leaves, 228 (cut) 



plant, 226 (cut) 



spore-case, 229 (cut), 236 (cut) 



stem with leaves, 34 (cut), 229 (cut) 



tuft 226, (cut) 

 hornum, 231 



apex of leaf, 226 (cut) 



leaves, 231 (cut) 



plant, 231 (cut) 



spiny leaf border, 226 (cut) 



spore-case, 232 

 futtctaium var. elatum, 225, 234, plate 



apex of leaf, 226 (cut), 233 (cut) 



leaf border, 226 (cut), 235 



leaves, 233 (cut) 



marginal cell of leaf, 226 (cut) 



spore-case, 233 (cut) 



stem, 233 (cut) 



with hairs, 233 (cut) 

 with leaves, 34 (cut) 

 undulatum, stem, 46 

 Monocarbonate of lime, 144 

 Monoicous, 40, 48 

 Mosses, 107, 109 



and Lichens, poem by Willis Boyd 



Allen, 3 

 as a cement, 7 



at work on the everlasting hills, u 

 change of colour, 6 

 check against torrents, 16 

 chemical work of, n 

 classified between, 71 

 distinguishing character, 30 

 distribution, 5, 7 

 "elf-needled mat," 10 

 endurance of cold, 7 

 first plants to appear on soil, 16 

 fossil evidence, 16 

 fruiting portion, 35 

 gametophyte, 65 

 how to collect, 73 



to dissect, 73 



to know them, 8 



to preserve, 73 



to study, 73 

 idle, 10 

 in rock crevices, 5 



32O 



