1902] Fernald, — Variations of American Cranberries 237 



V. OxYCOCCUS, L. Sp. 351 (1753). — Stems slender, creeping, the 

 branches almost capillary, erect or ascending: leaves oblong or oval, 

 3 to 8 mm. long, 1 to 3 mm. broad, strongly revolnte, becoming nar- 

 rowly triangular in outline, conspicuously whitened beneath : pedicels 

 1 to 4, capillary, from a terminal (rarely proliferating ) short rachis 

 (at most 3 or 4 mm. long), bearing near or below the middle 2 lance- 

 olate or lance-ovate often involute colored bracts : corolla-segments 

 5 to 6 mm. long: berry 6 to 8 mm. in diameter. — In sphagnum and 

 wet humus, boreal regions generally, coming south in America to 

 Pennsylvania, Michigan and Wisconsin. 



Var. intermedium, Gray, Syn. Fl. ii. pt. i, ed. 2. 396 (1886).— 

 Coarser: leaves 6.5 to 15 mm. long, 3 to 6.5 mm. broad, acute or 

 obtuse, only slightly revolute : pedicels 2 to 10, from a longer (often 



5 to 10 mm. long) rachis: corolla-segments 6 to 8 mm. long: berry 

 8 to 10 mm. in diameter. — Japan. Sachalin Isl., etc. ; Maine to Brit- 

 ish Columbia, south in the mountains to North Carolina and to Lake 

 Superior and Oregon. The following eastern specimens have been 

 examined: — Maine, Ft. Kent, no. 2416 ; Blaine, no. 2417; Orono 

 {Fertiahi) : Vermont, Colchester (Oakes) ; Willoughby {Kennedy): 

 Connecticut, without locality — probably Norfolk (Robbins) : New 

 York, western section (Gray) : North Carolina, without locality 

 (Croom): ONTARIO, Pic River, Lake Superior (Lor/tig) \ SASKAT- 

 CHEWAN, without locality (Bo/irgeau). 



V. macrocarpon, Ait. Hort. Kew. ii. 13, t. 7 (1789). — Stems com- 

 paratively stout: leaves oblong-elliptic, blunt or rounded at the tip, 



6 to 17 mm. long, 2 to 8 mm. broad, pale or somewhat whitened 

 beneath, flat or very slightly revolute : pedicels 1 to 10, from an 

 elongated ( 1 to 3 cm. long) proliferating rachis, bearing toward the 

 tip 2 flat leaf-like bracts (4 to 10 mm. long) : corolla-segments 6 to 

 10 mm. long: berry 1 to 2 cm. in diameter. -Open bogs and 

 swamps, and wet shores, Newfoundland to north central Maine, Lake 

 Champlain, and western New York, south to West Virginia and 

 Arkansas, mostly east of the Alleghanies and on the coastal plain. 



Gray I [erbarium. 



Explanation ok Plate 40. — Fig. 1, Vucctnium Vitit-Idaea^ tip of branch 

 of the larger European form from the Giant Mountains, Silesia ; fig. 2, 

 V. Vitis-Idaea . var. minor, small alpine specimen from White Cap Moun- 

 tain, Rumford, Maine ; fig. 3, V. Oxycoccus, tip of flowering branch from 

 Newton, Massachusetts; fig. 4, V. Oxycoccus, var. intermedium, tip of an 

 original specimen from Klikitat Co , Washington ; fig. 5, V. macrocarpon, 

 flowering tip from Stony Creek Ponds, New York. 



