1913] 
palustris, forma subsericea, 165, 
var. subsericea, 165; pennsylvan- 
ica, 140; tridentata, 170. 
Preissia quadrata, 22. 
Prenanthes trifoliolata, 168. 
Primula farinosa macropoda, 142. 
Provincetown, Elymus arenarius at, 
218. 
Prunella, 179, 181; hispida, 183; 
pennsylvanica, 180, 183, 9 lanceo- 
lata, 180, 181, var. lanceolata, 182, 
a ovata, 180; pensylvanica, 180; 
vulgaris, 179-182, in North Amer- 
ica, The indigenous Varieties of, 
179, forma albiflora, 182, 183, var. 
albiflora, 183, var. aleutica, 182, 
185, var. atropurpurea, 182, 186, 
var. calvescens, 182, 185, 186; 
y elongata, 180, 183, var. elongata, 
182, a hispida, 182, var. hispida, 
182, 183, @ lanceolata, 183, var. 
lanceolata, 182, 183, var. lanceo- 
lata, forma candida, 182, 184, var. 
lanceolata, forma iodocalyx, 182, 
184, 186, var. lanceolata, forma 
rhodantha, 182, 185, 9 major, 181, 
183, 8 pennsylvanica, 180, 183, 
var. scaberrima, 182, 183, 8 vul- 
garis, 181. 
Prunus, 32; cuneata, 98, 153; 
pumila, 203; virginiana, var. leu- 
cocarpa, 135. 
Pterigynandrum filiforme, 13. 
Ptilidium ciliare, 25; pulcherrimum, 
25, 27. 
Puccinellia, 146; distans, 146; mari- 
tima, 1406. 
Purple Agalinis, 224. 
Pyenanthemum virginianum, 
201. 
Pyrola americana, 122; rotundifolia, 
190. 
Pyrus americana, 121. 
Quercus, 101; alba, 102; bicolor, 
122; coccinea, 122; ilicifolia, 139; 
lyrata, 103; macrocarpa, 203; 
nigra, 103; Prinus monticola, 102. 
135, 
Racomitrium sudeticum, 13. 
Radicula palustris, 165. 
Radula complanata, 25; 
25; tenax, 25. 
Raimannia, 223; laciniata, 223. 
Ramalina farinacea, 93. 
Ranunculus abortivus, var. eucyclus, 
164; delphinifolius, forma ter- 
restris, 164, var. terrestris, 164; 
fascicularis, 67; lacustris, var. 
obconica, 
Index 
237 
terrestris, 164; laxicaulis, 139; 
missouriensis, 164; multifidus, var. 
terrestris, 164; pennsylvanicus, 139. 
Reboulia hemispherica, 22. 
Red Ash, 15; Sassafras, 14, 15. 
Reports on the Flora of the Boston 
District,— XVI, 54, XVII, 122, 
XVIII, 144. 
Resp, 32. 
Revised List of New England Hepa- 
ticae, 21. 
Rhaphidium faleatum, 91; faleatum 
aviculare, 91. 
Rhode Island, Arenaria caroliniana 
in, 115; Cyperus Grayi in, 100; 
Juncus dichotomus in, 151. 
Rhododendron canadense, 167; max- 
imum, 142. 
Rhytidiadelphus squarrosus, 13. 
Rhytidium rugosum, 13. 
Ribs, 32. 
Ribes, 29, 32; lacustre, 140. 
Riecardia latifrons, 22; multifida, 22; 
palmata, 22; pinguis, 22; sinuata, 
22. 
Riccia arvensis, 22; Austini, 22, 26; 
erystallina, 27; dictyospora, 22, 
26; fluitans, 27; hirta, 22, 26; 
Leseuriana, 22, 26; sorocarpa, 22, 
26; Sullivanti, 27. 
Ricciaceae, 22. 
Ricciella, 27; crystallina, 22; fluitans, 
22; membranacea, 22, 26; Sulli- 
vantii, 22. 
Rieciocarpus natans, 22. 
Rice, Wild, 29, 32. 
Rich, W. P., Chenopodium carinatum 
on Cape Cod, 220. 
Ricker, P. L., A new Color Guide, 96. 
Ridgway, R., [Notice of Work], 96. 
Rivularia, 91; laurentiana, 90. 
Robinson, B. L., Dr. C. A. Darling's 
Handbook of wild and cultivated 
Plants, 19; Erigeron pusillus a 
valid Species, 205. 
Rodman, R. S., Hieracium florenti- 
num at Wellesley Hills, Massachu- 
setts, 116. 
Rood, A. N., Juncus monostichus in 
Ohio, 62. 
Rosa cinnamonea, 166; setigera, 226. 
Rubacer, 222. 
Rubus, 222; canadensis, 224; Cham- 
aemorus, 141; fruticosus, 222; 
Millspaughii, 224. 
Rugg, H. G., The joint summer Meet- 
ing of the Vermont Botanical and 
Bird Clubs, 79. 
Rumex mexicanus, 164. 
