ST. JOHN: SABLE ISLAND. 67 



J. tenuis Willd. Common on the sand dunes. Collected by 

 J. Macoun; H. T. Gussow; H. St. John, nos. 1,171 and 1,172 (H). 



FL, r. August and September. 



[J. BALTIC recorded by J. Macoun (M. p. 218A) is J. balticus, var. 

 littoralis.] 



J. balticus Willd., var. littoralis Engelm. Very common in the 

 wet or dry dune hollows. Collected by J. Dwight, Jr. (D. p. 12); 

 J. Macoun; H. T. Gussow; H. St. John, no. 1,173 (H). 



FL, Fr. August. 



J. canadensis J. Gay. Common in the dune hollows. J. Ma- 

 coun; H. T. Gussow; H. St. John, nos. 1,174 and 1,175 (H). 

 FL August. Fr. August and September. 



J. pelocarpus Mey., var. sabulonensis, n. var., pros tratus omni- 

 bus partibus forma typica multo minor; foliis teretibus, septis vix 

 visibilibus; floribus in cymam contractam aggregatis; capsulo 2.5- 

 3.5 mm. longo, 1-1.5 mm. diametro igitur crassitudine dimidium 

 longitudinis subaequante. 



Prostrate, very much reduced in all parts: the septa scarcely 

 showing on the terete leaf blades: flowers more nearly approximate 

 in the reduced cyme: capsule 2.5-3.5 mm. long, 1-1.5 mm. wide, 

 averaging nearly one half as wide as long, while in J. pelocarpus the 

 capsules are 3-4 mm. long, and 1-1.5 mm. wide> averaging one third 

 as wide as long. The bulbiferous form is not known to occur in the 

 var. sabulonensis. 



NOVA SCOTIA: shallow ponds, Sable Island, Aug. 16, 1899, J. Ma- 

 coun (C. no. 22,631); sprawling in wet dune hollow, Sable Island, 

 Aug. 30, 1913, H. St. John, no. 1,176 (TYPE in Gray Herb.). 



J. bulbosus L. Common along the marshy borders of fresh- 

 water ponds. J. Macoun (C. no. 22,623) see J. M. Macoun, Ottawa 

 Nat. xv. (Contributions to Canadian Bot. xiv.) 79 (1901); H. St. 

 John, no. 1,177 (H). 



FL, Fr. August. 



[J. ARTICULATUS L. of J. Macoun is J. pelocarpus, var. sabulonensis .] 



J. articulatus L., var. obtusatus Engelm. Very common, in 

 the wet dune hollows. H. T. Gussow (E); H. St. John, nos. 1,178, 

 1,179, and 1,180 (H). 



Fr. August and September. 



Luzula campestris (L.) DC., var. acadiensis Fernald. See 

 Rhodora, xix. 38 (1917). Common on the dry dunes that are fixed 



