1907] Fernald & Eames,— Lists of New England Plants,— XX 87 
NOTES UPON THE ABOVE LIST. 
Sparganium fluctuans (Morong) Robinson. For detailed discus- 
sion see RHopona, vii. 60 (1905). 
Sparganium simplex Hudson has been reported from all the New 
England states, but it is very doubtful if it occurs as far south as 
Massachusetts. Most of the plants of southern New England so 
reported have proved to be either S. americanum, S. diversifolium 
or its var. acaule, or S. lucidum. The New England plants which 
have been passing as S. simplex may be distinguished as follows. 
SPARGANIUM SIMPLEX AND ITS NEW ENGLAND ALLIES. 
* Pistillate heads or branches of the inflorescence strictly axillary. 
+ Mature fruits dull: stigma 1-2 mm. long. 
S. AMERICANUM Nutt. Stoutish, 3-7 dm. high: leaves deep 
green, dorsally carinate, 6-12 mm. broad: bracts divaricate or 
arcuate-ascending, the lowest 0.8-2.2 dm. long: inflorescence 
simple: pistillate heads 2 to 5, all axillary, sessile or nearly so, in 
fruit 1.8-2.6 cm. in diameter: tepals with dilated and rounded 
erose summits; their bases closely investing the stipe of the carpel: 
mature fruits brownish, fusiform; the narrowly ellipsoid or sub- 
cylindrie body 5-6 mm. long, 2-3 mm. thick; the beak (including 
the stigma) 2.5-4 mm. long, about equalling the slender stipe.— Gen. 
ii. 203 (1818). S. simplex, var. Nuttallii Engelm. in Gray, Man., 
ed. 5, 481 (1867); Morong, Bull. Torr. Cl. xv. 79 (1888). S. simplex 
of many Am. auth., not Hudson. S. angustifolium Graebner in 
Engler., Pflanzenr. iv. no. 10, 16, in part (1900), not Michx. 5$. 
Nuttallii Engelm. according to Graebner, |. c. (1900). S. ameri- 
canum, var. N uttallii Graebner, |. c. (1900). S. simplex, var. ameri- 
canum. Farwell, Ann. Rep. Mich. Acad. Sci., vi. 202 (1904).— Bogs 
and muddy shores, New Brunswick to Iowa and Virginia; also in 
eastern Asia. 
Var. androcladum (Engelm.), n. comb. Inflorescence bearing from 
its lower axils 1 to 3 weak branches: leaves often broader (rarely 
2 em. broad): lowest bract 1.5-5 dm. long.— S. simplex, var. andro- 
cladum Engelm. in Gray, Man., ed. 5, 481 (1867). S. ramosum 
Chapm. Fl. 443 (1860), not Huds. S. androcladum Morong, Bull. 
Torr. Cl. xv. 78 (1888); Graebner in Engler, Pflanzenr, iv. no. 10, 
15 (1900).— Similar places, more common, Newfoundland to Minne- 
sota, south to Florida and Missouri. 
+ + Mature fruits lustrous: ‘stigma 2.5-4 mm. long. 
S. lucidum, n. sp. Planta 7.5-9 dm. alta; foliis 5-12 mm. latis, 
erectis, firmis et haud pellucidis, valde carinatis, inflorescentiam sim- 
