1921] Fernald,— Expedition to Nova Scotia 237 



* C. LENTICULARIS Michx. Gravelly and .sandy lake-margins, 

 Yarmouth Co. to Halifax Co., and probably eastward. See p. 102. 



C. GoODENOWll J. Gay, var. 8TRICTIFORMIS (Bailey) Kiikenthalin 

 Engler, Pflanzenr. iv. Fain. 20: 31(5 (1909). This is the most extreme 

 variation we have of C. (Joorfcnomi; being usually eespitose, with 

 tall culms and conspicuously stipitate perigynia. Widely distributed 

 in brackish or fresh soils in Nova Scotia. See p. 157. 



C. aurea Nutt. Damp calcareous or argillaceous soil, Annapolis 

 Co. to Cape Breton. See pp. 133, 105, 170. 



C. pauciflora Lightf. One of the most characteristic species of 

 sphagnous bogs. See pp. 9(5, 99. 



C. polygama Schkuhr. Occasional throughout the province in 

 peaty or gravelly soils. See pp. 101, 135. 



C. VTRESUENS Muhl., var. SWANII Fernald. Local in YARMOUTH 

 Co.: dryish peaty barrens, Yarmouth; boggy pasture. Centre Che- 

 bogue. 



C. GRACILLIMA Sehwein. Dry or moist woods and thickets, Cum- 

 berland Co. to Digby Co. and Cape Breton. 



* C. UMBELLATA Schkuhr., var. TONSA Fernald. Dry open soil, 

 Yarmouth Co. to Lunenburg and Annapolis Cos. See p. 130. 



C. VARIA Muhl. Abundant in dry or moist peaty soil, even on 

 knolls in sphagnous bogs, Yarmouth and Shelburne Cos. 



* C. PENNSYLVANIA Lam., var. LUCORUM (Willd.) Fernald. Dry 

 rocky and gravelly soil by railroad, west of Bridgewater, Lunenburg 

 Co. See ]). 130. 



C. panicea L. On damp argillaceous grassy or peaty slopes, 

 local, perhaps introduced but now thoroughly naturalized. Yar- 

 mouth Co.: Yarmouth; Chebogue; Lower Argyle. Shelburne 

 Co.: Shag Harbor. See pp. 95. 



C. eburxea Boott. Characteristic of dry crevices of gypsum 

 outcrops. Recorded by Nichols from northern Cape Breton. Seen 

 by us on gypsum at Five-Mile River (Hants) and Port Bevis (Vic- 

 toria). See pp. 13(5, 1(54, 170. 



C. leptonervia Fernald, Rhodora, xvi. 214 (1914). Rich woods 

 and thickets, generally distributed through the province, but rare 

 southwestward. Macoun's record of C. laxiflora, var. patulifolia 

 was based on this species. 



C. (ONOIDEA Schkuhr. Sterile or peaty fields and meadows, fre- 

 quent from Yarmouth to Halifax and Pictou Cos. 



C. flava L. Frequent or common throughout. 



* C. cryptolepis Mackenzie, Torreya, xiv. 157 (1914). Less 

 common than C. flava. Seen by us only in Hants Co.: swaley 

 border of pond near Five-Mile River. 



C. Oederi Retz. Yarmouth Co.: sphagnous swale bordering 

 Beaver Lake; gravelly and rocky shore of Lake Annis. Annapolis 

 Co.: swales and low pastures near Bay of Fundy, Margaretville, 

 the long-spiked ** forma elatior (N. J. Anders.) Ktikenth. Col- 



