MR. C. B. CLARKE ON CAREX TOLMIEI. 403 
Note on Carex Tolmiei, Boott. By C. B. Crarke, F.L.S. 
[Read 20th November, 1902.] 
THE species Carex Tolmiei, Boott, has proved so very trouble- 
some to American caricologists, that an immediate account of the 
material in herb. Boott, and of some of that in herb. Kew which 
Boott probably saw, may be acceptable. 
C. Tolmie?, Boott, was founded in Hook. FI. Bor.-Amer. vol. ii. 
[1839] p. 224, on a single collection of Tolmie made on the 
Columbia River in N.W. America. At the same time, Buott 
founded on the next page (p. 225) his species C. nigella, on a 
single collection of Tolmie made on the Columbia River. 
Subsequently, Boott in his Illustr. Carex, p. 100, t. 299, 
described and figured C. Tolmiei. Were Boott added to the 
original material Seemann n. 2207, C. Wright n. 22, C. Wright 
n. 23, and C. melastoma herb. Fischer; of which four plants no 
one is equal to C, Tolmiei, nor, in my opinion, can be made con- 
. Specific with it. However, the figure t. 299 is taken wholly 
from C. Tolmiei, the original type; though the description 
includes the four other plants, and probably some other things 
marked “ C. Tolmiec” in herb. Kew. 
We have, then, for ©. Tolmiei the six excellent culms 
originally collected by Tolmie, and Boott’s good figure, t. 299. 
I first give a diagnosis founded on these only. 
Carex Toumier (Hook. Fl. Bor.-Amer. ii. [1839] p. 224) 
spicis 9-6, summa mascula, foemineis anguste ellipsoideis densis ; 
glumis foemineis utriculos non aut vix superantibus ; stylo 3-fido ; 
utriculis (rostro perbrevi incluso) 2-23 mm. longis, anguste 
ellipsoideis (fere oblongis) trigonis, basi angustatis; nuce utri- 
culum inplente. 
Habitat. Columbia River ; Tolmie. 
No one of the 6 culms of C. Zolmiei has less than 6 spikes ; 
ho one of the culms added to it by Boott has more than 4. On 
hone of these added culms (except some I call C. nigella, Hook.) 
is the female spike dense as in C. Zolmiei. The definitely 
trigonous nut has always a 3-fid style; the material called 
C. Tolmiei var. subsessilis by L. C. Bailey (in Mem. Torrey Club, 
vol. i. (1889) p. 47), with bifid style, I refer to C. rigida, Gooden., 
and C. pulla, Gooden. 
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