1911] 
103, 253; Strobus, 77, 139, 219, 
253, stump-healing in, 253. 
Plantago aristata, 19, var. Nuttallii, 
19; decipiens, 216; lanceolata, 
199-203, 205, 206, var. alopecur- 
oides, 204, On Gynodioecism in, 
199, var. sphaerostachya, 204; 
maritima, 215; media, 200. 
Plants from Nantucket, Three addi- 
tional, 105; in Flower February 8, 
1911, at Clemson College, South 
Carolina, 91; Notes on Connecti- 
cut, 30; of Connecticut, Some 
introduced, 88; of eastern Con- 
necticut, Observations on some, 68. 
Plumboy, 123. 
Pluteolus callistus, 65. 
Poa alpina, 119, 136; eminens, 119, 
123; Sandbergi, 141. 
Podostemum ceratophyllum, 221. 
Pogonia ophioglossoides, 139, 220. 
Poisonous Dogwood, 57; Ivy, 57. 
Polygala Nuttallii, 8. 
Polygonaceae, 89. 
Polygonella articulata, 180. 
Polygonum cilinode, 141, 148; Muh- 
lenbergii, 18; ramosissimum, 89; 
Roberti, 138; sagittatum, 18, 139; 
Fowleri, 180. 
Polyides, 187; rotundus, 187. 
Polypodium vulgare, 105. 
Polyporaceae, 64. 
Polyporus, 63; admirabilis, 63-65; 
squamosus, 64; varius, 64. 
Polystichum Braunii, 116, 218, 238; 
Lonchitis, 116, 117. 
Polytrichum, 91; alpinum, 46; stric- 
tum, 46. 
Poplar, Black, 195; Virginian Black, 
198 
Populus, 197; alba, var. Bolleana, 
197; angulata, 12, 13; balsamifera, 
138, 147; canadensis, 13, 196, 199; 
candicans, 237; deltoides, 12-14, 
195-197, 199; grandidentata, 141, 
148; marilandica, 196, 199; moni- 
lifera, 12, 197, 198; nigra, var. 
italica, 197; var. virginiana, 198; 
tremuloides, 117; virginiana, 12- 
14, 195-198, and P. angulata, 12. 
Potamogeton crispus, 221; filiformis, 
138; Oakesianus, 134, 135, 140, 
148, 160; pectinatus, 177; prae- 
Mp» forma elegans, 117; Vaseyi, 
o 
Potentilla Anserina, 180; canadensis, 
var. simplex, 106; fruticosa, var. 
tenuifolia, 129; intermedia, 89; 
Index 
265 
maculata, 127, 137; nivea, 127; 
recta, 89; tridentata, 238. 
Prenanthes altissima, 141, 148; 
mainensis, 218; racemosa, 148. 
Primula farinosa, var. macropoda, 
138, 216. 
Pringle, Cyrus Guernsey, 225. 
Proserpinaca pectinata, 8. 
Prunus americana, var. mollis, 31; 
maritima, 91; nigra, 31; Persica, 
91; pumila, 141. 
Psalliota, 62. 
Ptelea, 81; mollis, 80-82, var. 
cryptoneura, 81, 82, a Wafer-ash 
of the Georgia Sand-hills, 80; 
trifoliata, 80, var. mollis, 80, 81. 
Pteridophyte Notes from eastern 
Massachusetts, 101. 
Pterigynandrum filiforme, 46. 
Pubescent Variety of Vaccinium 
vacillans, 235. 
Puccinellia, 216. 
Pyenanthemum Torrei, 32. : 
Pyrola americana, 97, 139, 146; 
asarifolia, 115, 141, 148, var. 
incarnata, 138, 141; elliptica, 147; 
minor, 138; secunda, 126; uligi- 
nosa, 221. 
Pyrus americana, 238; arbutifolia, 
var. atropurpurea, 117, 135, 149; 
melanocarpa, 139; sitchensis, 138, 
238. 
Quercus, 229; alba, 217, 219; coccinea, 
219; prinoides, 219; rubra, 141; 
velutina, 217. 
Racomitrium aciculare, 43; fascicu- 
lare, 43. 
Radicula aquatica, 229. 
Range of the Black Birch to be 
restricted, 206. 
Ranunculus abortivus, 125; affinis, 
223; Allenii, 146, 223; Harveyi, 
146; hyperboreus, 122; Macounii, 
138; pedatifidus, 223; pennsyl- 
o 180; repens, 19; sceleratus, 
9. 
Recent Treatment of Panicum com- 
fare with that of Gray’s Manual, 
Red Berry, 123; Pine, 139, 161. 
Reports on the Flora of the Boston 
District, — VIII, 27, IX, 72, X, 
82, XI, 104, XII, 232, XIII, 248. 
Reynolds, E. S., Notes on Botry- 
chium from 'Fennessee, 14. 
