164 
CHARA CARMENENSIS sp. nov. 
Chara diplostephana, triplosticha, gymopus, monoica-conjuncta, 
podophora ; foliola posteriora breviora, anteriora sporangio aqua- 
lia vel paullo longiora, articuli foliorum 9; articulus infimus diame- 
tro 4-plo longior; nucleus minor 0.610 mm. longa; caulis circa 
25 cm. longus, flexilis, aculeis linearis acuminatis armatus; acu- 
. ¥%4-1 diametro caulis; stipule lineares %—% articulo infimo 
onge. 
This species, collected by Dr. A. E. Palmer on Carmen Is- 
land, in the Gulf of California, is a slender, long-leaved form, with 
numerous, scattered, narrowly linear spines rarely longer than half 
the diameter of the stem; verticils of 8 to 10 leaves, the segments 
of the leaves usually 9, the lowest naked, then 7 corticated, then : 
a short, rather abruptly pointed tip. The lowest naked segment 
is about 1.7 mm. long and 0.440 in diameter; the _ stipules, 
though long and slender, cover but little more than half this node. 
The bracts are developed around the leaf nodes, but the posterior 
are quite short, while the anterior equal or a little exceed the 
length of the sporophydium. The coronula of the sporophydium — 
is slightly spreading, not connivent; the nucleus is 0.610 mm. 
long by 0.360 broad, with /welve prominent ridges. 
This species seems most nearly related to Ch. Ceylonica Klein Ay 
and Willd. (Ch. gymnopus var. Delilei A. Br.), and Ch. Angolensis 
A. Br., from Ceylon and Africa, and to Ch. armata Meyen, from 
Sandwich Islands; from all of which it is clearly distinguished — 
either by the spinescence of the stem, size of nucleus and by other 
characters, a 
In Plate 190, Fig. 1 represents the plant about natural size, 
figs. 2 and 3 portions of the stem and leaves X 25, fig. 4 nucleus” 
x 50. . 
CHARA INCONSTANS var. HicKsIANA var. nov. (Chara Hicks ‘Allen 
in plate 191.) ; ‘ 
_ Chara diplostephana, triplosticha, gymnopus, monoica-con” 
juncta, podophora; foliola anteriora sporangio breviora, posterior? 
brevissima;, articuli foliorum 4-5; articulus infimus diametro- 
4-5-plo longior; nucleus 0.650 mm. longa. : 
This small Chara was collected by Mr. Hicks, of the University 
of Michigan, in one of the lakes of that State; the plant is incon” 
spicuous, only about 4 cm. high, in dense tufts. The stem i 
