1912] 
vær. perlonga, 78; Muhlenbergii, 
78, var. enervis, 78; muricata, 
78; novae-angliae, 78;  Oederi, 
107, var. pumila, 107; oligosperma, 
107; pallescens, 107; panicea, 
107; pedunculata, 107; penn- 
sylvanica, 107, var. lucorum, 107; 
plantaginea, 75; platyphylla, 107; 
polygama, 108; prasina, 108; 
Pseudo-Cyperus, 108;  ptycho- 
carpa, 108; retroflexa, 108; re- 
trorsa, 78; riparia, 108; rosea, 
108, var. minor, 108, var. radiata, 
108; rostrata, 108, 112, var. 
utriculata, 108;  rupestris, 88; 
salina, var. cuspidata, 108, var. 
kattegatensis, 108, var. katte- 
gatensis X stricta, 108; scabrata, 
109; scirpoides, 109, var. capilla- 
cea, 109; scoparia, 109, 115, A 
blunt-spiked Variety of, 115, var. 
condensa, 109, var. moniliformis, 
109, 116, var. subturbinata, 116; 
seorsa, 109; setacea, var. am- 
bigua, 109; siccata, 109; silicea, 
109; sparganioides, 109; squar- 
rosa, 109; stellulata, 110, var. 
angustata, 110, var. cephalantha, 
110, var. excelsior, 110; sterilis, 
110; stipata, 110; straminea, 110; 
stricta, 109, 110, var. angustata, 
110, var. curtissima, 110, var. 
decora, 110; tenella, 110; tetanica, 
var. Woodii, 110;  tribuloides, 
110, 115, 116, var. reducta, 110. 
var. turbata, 110, 115; tricho- 
carpa, 110, 111; trisperma, 111, 
var. Billingsii, 21, 111; Tucker- 
mani, 111, 112; umbellata, 112, 
var. brevirostris, 112, var. tonsa, 
112; varia, 112, var. colorata, 112; 
vesicaria, 111, 112, var. jejuna, 
112, var. monile, 112; vestita, 112, 
var. Kennedyi, 112; virescens, 112, 
var. Swanii, 112; vulgaris, 109; vul- 
pinoidea, 112; Willdenowii, 112. 
Cassia Chamaecrista, 91; nictitans, 
28. 
Castalia, 31; odorata, 26. 
Catalpa speciosa, 81. 
Caulerpa falcifolia, 59; Pickeringii, 
9 
59. 
Caulophyllum thalictroides, 75. 
Cephalanthus occidentalis, 21. 
Cephalozia, 223; asperifolia, 222, 
223; asprella, 222; bifida, 220; 
byssacea, 221; connivens, 17; 
divaricata, 221, var. scabra, 222, 
B Starkii, 221; fluitans, 224; 
Index 
245 
lunulaefolia, 18;  serriflora, 18; 
Starkii, 221. 
Cephaloziella, 220, 221; bifida, 220- 
222;  byssacea, 221, 222, var. 
asperifolia, 222; divaricata, 221, 
222; Douinii, 222; elachista, 18, 
224; Hampeana, 17, 18, 221, 222; 
myriantha, 18;  papillosa, 222, 
223, var. scabra, 223; Starkii, 221; 
Sullivantii, 224. 
Cerastium alpinum, 87. 
Chaetosphaeridium globosum, 115. 
Chamaecyparis, 21, 22; thyoides, 19. 
Chamberlain, E. B., A Sedum new 
to North America, 227. 
Characium Naegelii, 114. 
Chelone, 225; glabra, 225, 226, A 
northeastern Variety of, 225, var. 
dilatata, 226, var. lanceolata, 226; 
obliqua, 226. 
Chenopodium, 206. 
Chickasaw Plum, 198. 
Chiloscyphus, 209, 214, 217, as- 
cendens, 209, 210, 212-216, 220; 
fragilis, 209, 217-220, var. cal- 
careus, 218, var. subterrestris, 
218; lophocoleoides, 213, 216; 
Nordstedtii, 209; . pallescens, 209, 
210, 213-218, 220; polyanthus, 
209, 213, 214, 216-220, var. 
erectus, 217, var. fragilis, 217, var. 
grandicalyx, 214, var. rivularis, 
217, B rivularis, 219, var. sub- 
mersus, 218, forma subterrestris, 
219, var. Sullivantii, 217, 218; 
rivularis, 209, 219, 220, var. sub- 
teres, 220, forma subterrestris, 220. 
Chlamydomonas communis, 114. 
Chlorodesmis, 58-60; comosa, 59. 
Chlorophyceae, 114, 236. 
Chondrus uncialis, 59. 
Chrysopsis faleata, 28. 
Cladium mariscoides, 31. 
Cladonia fimbriata, forma simplex, 
89; furcata, var. racemosa, 89; 
rangifera, 89; reticulata, 89; sylva- 
tiea, 89; verticillata, 89. 
Cladoniaceae, 89. 
Cladophora fracta, 115, 237. 
Clarke, C. H., A Suggestion for 
summer Observations, 177. 
Clematis verticillaris, 75. 
Clethra alnifolia, 21. 
Climacium americanum, ^51, 52; 
dendroides, 51, 52. 
Coelastrum microporum, 115, 237. 
Coelosphaerium Kuetzingianum, 236. 
Coleochaete orbicularis, 237; soluta, 
237. 
