Pear le 
CHARA. CRINITA, Water: 
Var. Americana. 
Euchara, Diplostephane, Perfecte. 
Division, HAPLOSTICHE. Series of cortex cells equal to the number of leaves, 
CHARA CRINITA, Wallr. Ann. bot. 115. Ch. canescens, Lois.; Ch. horridula, 
Detharding: Ch. condensata, Wallm. ; Ch. hispida var. crinita, Wahl. Dicecious; 
antheridia rarely found. Stems rigid, clustered, erect, mostly simple, densely beset 
with fascicled hairs, which are in length twice the diameter of the stem. Cortex 
consisting of large cells parallel to the axial cells, separated by deep longitudinal 
furrows, not spiral. (See D, a longitudinal section of stem, made by embedding 
the stems in pith, in a “section-cutter”). | VERTICILLS distant, 8—ro radiate (branched). 
STIPULES in a double series, twice the number of branches; each primary stipule-cell 
supporting a double stipule developed upward and downward. (See figs. B and D.) 
BRANCHES erect and spreading, rigid, corticated as far as the apical cell, articulations 
4—7, each joint bearing 5—8 bracts. SpoRANGIA varying in form and size, “forma 
pachysperma” short and broad, ‘‘ forma leptosperma” Jong and narrow; nucleus 
black ; coronula truncate not spreading. LrarLers whorled 5—8, longer than the 
sporangium, except 2-3 very short ones occupying the place of bracts. 
VAR. AMERICANA. Robust dark-green. J.ength of sporangium and coronula, 
0.70 m.m., of nucleus, 0.56; breadth of sporang., 0.56; of nucleus, 0.50; of 
coronula, 0.18. This variety is, in general appearance, related to var. Baltica, A.Br., 
but that form is only half ‘the size, and belongs to the series designated by ‘‘forma 
leptosperma,” while our var. belongs to ‘‘ forma pachysperma.” Our form also differs 
widely in growth and habit from C%. condensata, Wallm. (‘forma pachysperma humilis 
condensata,” A.Br., No. 80, Braum, Rabenh., Stizent., charac. exsic.), described by 
Wallman as ‘‘ pumila, obesa, obscure viridis ; verticillis confertis, densis, subglomeratis.” 
Gathered in brackish (nearly salt) water, in Great Pond, Montauk Point, Long 
Island ; associated with Ch. aspera. Prof. Braun remarked this association of the two 
species in America as interesting, since they are always found together in the Old World. 
April, 1879. 
Since writing the above we have received from Mrs, Maria, L. Owen forma leptosperma} collected in Nantucket, Mass.; thes. 
Specimens agree with the European ones, 
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