(272 ) 
e: ‘ Van Buren Co., August, 1838, ex herb. I. C. Martin- 
dale”; in the herbarium of the New York ‘Botanical Garden. 
Believed to be from southern Michigan. 
Distribution : Only known from original collection. 
19. Chara Curtissii Allen, sp. nov. [Bull. Torrey Club 7: 107, 
nomen. 1880] 
Monoecious: 10-15 cm. high, lightly incrusted; stems 0.5-0.6 
mm. in diameter, somewhat irregularly corticated, the cortical node- 
cells more usually giving | off secondary cells on both sides, but 
sometimes on one side only, these secondary cortex-cells being 
nearly always of less diameter than the ag "and of ver unequas 
length, sometimes becoming very narrow, the cortex, essentially 
triple, thus appearing double or even single ; nee te scattered, 
linear-lanceolate or lanceolate, 0.2-0.44 mm. long, 0.06—-0.09 mm 
wide: stipulodes forming a single whorl at each node, twice the 
number of the leaves, foliose, 2-2.8 mm. long, 0.26-0.32 mm. wide, 
narrowly ee acute at the apex: leaves 8-10 in a 
whorl, 1-1.2 mm. long, 0.39-0.46 mm. wide, usually containing 
four internodes, besides the terminal cell, entirely ,uncorticated ; 
leaflets at each node subequal or very unequal, as ee eoles attain 
ing a maximum length of over 2 mm., usuall —o.3 mm. wide: 
narrowly elliptic, greatly exceeding the ee ee ant. heridia 
28-0.35 mm. in diameter; uated a — probably due to 
incomplete maturity, the oldest 0.57—0. long, 0.5 mm. wide, 
odspores 0.4—-0.42 mm. Tone oO. rs 39 mm. wide, with about 6 
striae; whorl 6f crown-cells 0.08—o.12 mm. high, 0.2 mm. wide at 
base, the individual cells ovate, very nae and obtusely beaked. 
Type collected in a shallow saw-grass pond, 2 or 3 miles east of 
the Halifax River, Volusia County, Florida, by A. H. Curtiss, May 
25, 1879; in the herbarium of the New York Botanical Garden. 
Distribution: Only known from original collection. 
Illustration: Allen, Char. Am. 55. /. 50, as C. flaccida. 
20. Chara longifolia sp. nov. 
Monoecious or appearing dioecious: 15-30 cm. high, bright- 
green, very slightly incrusted ; stems o.8—1.2 mm. in diameter, cor- 
tication irregular, the primary rows often ee straight, the node- 
sometimes none, irregular interstices occasionally found ; a Wasi 
found only on the youngest internodes, ovate, 0.17~0.47 mm. long, 
0.14-0.18 mm. wide, on the lower internodes represented only by 
anal papillae, or more often entirely wanting: stipulodes forming 
