1910] 
Preisselbeere, 23. 
Preissia quadrata, 204. 
Prenanthes, 6; Boottii, 6; racemosa, 
112. 
Prickly Lettuce, 15. 
Primula mistassinica, 112-115 
Prunus, 180; avium, 128, 176, 181; 
Cerasus, 32; cuneata, 128; nigra, 
128;  pennsylvanica, 128, 181; 
pumila, 113; serotina, 180; spi- 
nosa, 128; virginiana, 181. 
Psedera, 182; quinquefolia, 182. 
Pterigynandrum filiforme, 153. 
Puccinia, 124, 125. 
Pulsatilla hirsutissima, 16. 
Pyrola asarifolia, 113, var. incarnata, 
P 
Pyrus, 179; americana, 179; arbuti- 
folia, 179; Malus, 179; melano- 
carpa, 117, 179. 
Quereus, 179; alba, 8; ilicifolia, 8; 
prinoides, 8, var. rufescens, 8; 
rubra, 179; Sadleriana, 56; stel- 
lata, 8; velutina, 8. 
Quick-grass, 27. 
Raeda Winbaer, 21. 
Raisin de mare, 21. 
Raisin, Wild, 184. 
Ramalina Montagnaei De 
on Long Island, 7. 
Range extension of Scirpus Smithii, 
var. setosus, 155. 
Ranunculus, 94; abortivus, 128; al- 
legheniensis, 128; bulbosus, 104, 
128; delphinifolius, 108, 109, 139; 
fascicularis, 128; Purshii, 116, 139. 
Rasberries, 119. 
Raspberry, Wild Red, 180. 
Ratibida, 14. 
Red Cherry, Wild, 181; Chokeberry, 
179; Currant, 21, 22, 25, 32, 33; 
Maple, 182; Oak, 179; Pine, 176; 
Raspberry, Wild, 180; Spruce, 177; 
Whortleberry, 23, 34, 35. 
Red-berried Elder, 184. 
Reed, Sand, 28, 30, 36. 
Rehder, A., Lonicera prolifera and 
L. flavida, 166; A new hybrid 
Cornus (Cornus rugosa X stolon- 
ifera), 121; Note on the forms of 
Kalmia latifolia, 1. 
Reports on the Flora of the Boston 
District, — VI, 3, VII, 95. 
Representatives of  Erigeron 
in northeastern America, 225. 
Rhamnus alnifolia, 103, 117, 
Not. 
acris 
140; 
Index 241 
caroliniana, 79, A new Variety of, 
79, var. mollis, 79; Frangula, 79. 
Rhinanthus Crista-Galli, 143, 144, 
var. fallax, 143; oblongifolius, 144. 
Rhode Island Flora, Some Additions 
to the, 216; Selerolepis uniflora in, 
le: 
Rhododendron, 182; canadense, 129, 
182; catawbiense, 3. 
Rhodora, 182. 
Rhus, 181; copallina, 120; Toxico- 
dendron, 181; typhina, 181. 
Ribes, 20.021 170 alpinum, 2 
americanum, 34; floridum, 34; 
lacustre, 33, 38; nigrum, 22, 32, 
176, 179; oxyacanthoides, 128, 
179; prostratum, 33, 38, 128, 
179; rubrum, 21-33; triste, 33, 
38; vulgare, 21, 32, 33. 
Ribs, 21. 
Riccia epicarpa, 193; lanigera, 196; 
Lindenbergiana, 193; membrana- 
cea, 196, 197; minima, 193, 195, 
196; nigrella, 195, 196; Raddiana, 
193; sorocarpa, 193-196; tenuis, 
196. 
Ricciaceae, 193. 
Ricciella, 197; cristallina, 197; flui- 
tans, 204; membranacea, 196. 
Rice, American Wild, 25; Wild, 17, 
26, 37, 38. 
Robinia, 181; 
viscosa, 181. 
Robinson, B. L. Coulter & Nelson’s 
Pseudo-Acacia, 181; 
Botany of the central Rocky 
Mountains, 13; Notes on recent 
Publications, — 56; Ornamental 
Shrubs of the United States, 207. 
Rock Cranberry, 23, 25, 34, 35, 183; 
Maple, 182. 
Roda V inbàr, 21, 32. 
Roripa, 14. 
Rosa, 180; acicularis, var. Bourgeau- 
iana, 120; cinnamomea, 180; hu- 
milis, 180; rubiginosa, 180; spi- 
nosissima, 176, 180; virginiana, 180. 
Rosaceae, 179. 
Rose, Cinnamon, 180; Glossy, 180; 
Low, 180; Pasture, 180; Scotch, 
180. 
Rubus, 110, 180; allegheniensis, 180; 
canadensis, 103, 180; Chamae- 
morus, 106, 109; hispidus, 180; 
idaeus, var. aculeatissimus, 180; 
triflorus, 128; villosus, 120. 
Rumex, 138; Brittanica, 104, 138; 
occidentalis, 107; Patientia, 104, 
138. 
Running Swamp Blackberry, 180. 
