312 



Rhodora 



[Di 



North America, The Genus Echi- 

 nochloa in, 49. 



North American Representatives 

 of Scirpufl cespitosus, 22. 



North and South America, Veronica 

 in, 1, 29. 



Notes from the Woods Hole Labora- 

 tory,— 1921, 249; on New Eng- 

 land Hepaticae, — XVI. 281; 

 on New England Orchids, — I. 

 Spiranthes, 73; on Rhododendron, 

 177. 



Notothylas orbicularis, 183. 



Nova Scotia, The Gray Herb- 

 arium Expedition to, 1920, 89, 

 130, 153, 184, 223, 257, 284. 



Nymphaea minor, 162; odorata, 

 var. minor, 162, var. parviflora, 

 162, var. rosea, 161, 162, 264; 

 rosea, 162. 



Nymphoides, 169, 171. 



Nvmphozanthus rubrodiscus, 137, 

 264. 



Oak, Red, 91. 



Oakesia, 92. 



Oedogonium, 07. 



Oenothera, 116; biennis, 116; 



bistorta, 116; cruciata, 116; 



fruticosa, 116; grandiflora, 116; 



hybrida, var. ambigua, 110; 



laciniata, 116; muricata, 116; 



Oakesiana, 116; pratensis, 116; 



pumila, 116. 

 Old-time Connecticut Botanists 



and their Herbaria, — II. 121, 



171. 

 Onagraceae. 

 Onoclea sensibilis, 185; Strut hiop- 



teris, 186. 



< )phioglossaceae, 209, 210. 

 Ophioglossum, 141; arenarium, 187; 



vulgatum, 141, 142, 187, 210, 217, 

 var. minus, 187, 210, 217. 



< )phrydeae, 77. 

 Ophrydium, 66. 



Oplismenus crus-pavonis, 60, 61; 



holciformis, 62; jamaieensis, 63; 



polystachyus, 63; zelayensis, 54. 

 Opuntia vulgaris, 113. 

 Orchids, 90, 196, 197; Notes on 



New England, — I. Spiranthes, 



73. 

 Orchifl flava, 148, var. virescens, 



148; virescens, 148; White-fring- 

 ed. 90, 110. 

 Ornithogalum umbellatum, 242, 



244. 



Orontium, 171. 



Orthotrichum sordidum, 68. 



Orvzopsis asperifolia, 229; cana- 

 densis, 132, 229. 



Osmorhiza Claytoni, 170, 277; 

 divaricata, 140, 170, 277. 



Osmunda cinnamomea, 185; re- 

 galis, 134. 



Ostrich Eern, 151. 



Ostrya virginiana, 137, 170, 257. 



Oxvdcndnnn arboreum, 180. 



Oyster-plant, 102. 



Paederota, 3. 



Panax, 118; trifolium, 118. 



Panicum, 64, 141, 156, 224; aris- 

 tatum, 63; boreale, 195, 228; 

 capillare, var. occidentale, 192; 

 colonum, 53, var. zonale, 53; 

 crusgalli, 55-57, 61, 302, a. 

 aristatum, 57, est. brevisetum, 55, 

 /3. mite, 60, f. purpureum, 60, 

 var. hisj)idum, 62, var. longi- 

 setum, 55, 57; crus-pavonis, 

 61; depauperatum, 138, 194, 

 var. psilophyllum, 193, 194, 

 var. psilophyllum, forma cryp- 

 tostachys, ' 194; dichotominor- 

 um, 166, 192; dichotonmm, /3. 

 fasciculatum, 228; echinatum, 

 57, 60, 61; fnunentaceum, 54; 

 Funstoni, 227; hispidum, 62; 

 huachucae, 141, 223-226, 228, 

 var. fasciculatum, 228, var. silvi- 

 cola, 224-226, 228; implicatum, 

 223, 224, 226, 228; languidum, 

 141, 224, 225, 228; lauginosum, 

 var. hviachucae, 228; Lindhei- 

 meri, 141, 170, 223-225. 227, 

 var. fasciculatum, 226-228, 

 var. implicatum, 22(5, 228, var. 

 septentrionale, 226, 227, var. 

 typicum, 228, 227; linearifolium, 

 194, var. Werneri, 104 ; longi- 

 folium, 160, 168, 193, 300, var. 

 tusketense, 192,300; lonpsetum, 

 62; marginatum, 194; muricatuni, 

 57, 61; nitidum, 7. ciliatum, 228, 

 g. pilosum, 22S; pacificum, 226, 

 228; plicatum, 64; pyramidale, 

 63, 04; sabulicolum, 60, 61; 

 Sect. Lanuginosa, 225; Sect. 

 Spreta, 224; spectabile, 63, 64, 

 var. guadeloupense, 63; spretum, 

 99, 101, 102, 141, 11(5; strictum, 

 194, 195; subvillosum, 103, 224, 

 22N; tenn cooocn ae, 141, 223, 

 225, 226, 228; unciphvllum 



