200 Rhodora [NOVEMBER 
Figures 9 to 12 inclusive are Stigonema medium. 
Fig. 9. Shows that branching is not unilateral; young branch; division of a 
cell; two cells side by side. 
" 10. Hormogone-bearing branch, and heterocyst. 
“ 11. Escaping hormogone. 
“ 12. Thickened portion of sheath at end of hormogone. 
AGRICULTURAL COLLEGE, Amherst, Massachusetts. 
SIX WEEKS’ BOTANIZING IN VERMONT,— II. 
ADDITIONAL NOTES ON PLANTS NEAR BURLINGTON. 
SipNEY F. BLAKE. 
OsMUNDA CINNAMOMEA L. f. iNcisA (Huntington) Gilbert. Alt. 
3670, Mt. Mansfield, 11 August (Blake 2733). 
PICEA MARIANA (Mill.) BSP. f. semiprostrata (Peck) n. comb. 
P. brevifolia var. semiprostrata Peck, Spruces of the Adirondacks 12, 
13 (1897).— In moss, alt. 3900 ft., Mt. Mansfield, Underhill, 11 Aug. 
1911 (Blake 2745).— A creeping alpine form of the Black Spruce, 
eight or ten decimeters long or more, with short crowded branches 
mostly fascicled toward the erect apex of the stem, and tiny four- 
grooved glaucous needles 3-6 mm. long. 
SAGITTARIA ARIFOLIA Nutt. Mud flats of Lake Champlain, North 
Ferrisburg, 8 August 1911. 
CYPERUS STRIGOSUS L. f. capitatus (Boeckl.)n.comb. C. strigosus 
var. capitatus Boeckl. Linnaea xxxvi. 347 (1869-1870). C. capitatus 
Smyth, Trans. Kansas Acad. Sci. xvi. 163 (1899).— Pasture, Cobble 
Hill, Milton, growing with the typical form.— A form not very well 
marked, often —as in Boeckler’s original specimens — small and 
seeming only a dwarfed state of the typical plant, but occasionally 
larger and more definitely distinguished. 
SCIRPUS ATROCINCTUS Fernald f. BRACHYPODUS (Fernald) Blake. 
Pasture, alt. 1400, Mt. Mansfield, Underhill. 
S. HETEROCHAETUSs Chase. Meadow, North Ferrisburg. 
1 The notes of this list relate to plants collected on several short excursions from 
Essex Junction, outside the limits of the Burlington Region as defined by Mrs. Flynn. 
