50 Th. Holm. 
tegente, apice supra petioli insertionem converso vix 1 cm libero; radia- 
tim 5-nervio; costa ad !/, partem supra basin nervos laterales utrinque 
duos sub angulo valde acuto ascendentes et superius alios utrinque 4-—5 
tenuiores divaricatos mittente, omnibus, et costa ipsa, supra immersis, 
subtus prominentibus, in reticulum laxum intra marginem resolutis; in- 
florescentia [in specimine unico adhuc admodum juvenili] oppositifolia; 
pedunculo vix 5 mm longo hirsuto, reflexo; spica 1,5 em longa; bractea 
suborbiculari, glabra. 
[Cetera ignota.] 
Ecuador: Crescit cum praecedente. 
Species habitu ac potissimum lobi alterius magnitudine et in coch- 
leae formam, gyro completo, super ipsum convoluti a ceteris omnibus 
primo intuitu facile distinugenda. 
XVII. Th. Holm, Carices novae Americae 
Boreali-occidentalis. 
(Ex: Holm, Studies in the Cyperaceae, XXIV, in Amer. Journ. Sci., XX |1905], 
pp. 301—306.) 
1. Carex limnaea Holm, l. c., p. 301, fig. 1—3. 
Rhizome vertical with ascending shoots and light brown, fibrillose 
leaf-sheaths; leaves a little shorter than the culm, narrow, but flat, 
glaucous, scabrous along the margins; culm about 60 em in height, erect 
or slightly curved above, very slender, triangular, scabrous, phyllopodie; 
spikes 3 to 5, but mostly 4, the terminal staminate or, sometimes, andro- 
gynous, the lateral pistillate, the uppermost contiguous, the lowest remote, 
sessile to shortly peduncled, erect, not very dense-flowered, cylindric, 
about 2 em in length, subtended by sheathless, foliaceous bracts, the 
lowest one often exceeding the inflorescence; scale of staminate spike 
lanceolate, light purplish-brown with green midvein; scale of pistillate 
spike oblong, obtuse, black with hyaline apex and greenish midvein, 
shorter than the perigynium; perigynium stipitate, slightly spreading, 
narrowly elliptical, granular, plano-convex, prominently many-nerved on 
the outer (convex) faee, three-nerved on the inner, pale green with 
a black, entire and very distinct beak: stigmata 2, style long and ex- 
serted. 
Oregon: Crater Lake National Park, Cathedral spring, collected by 
Mr. F. V. Coville, September, 1902 (no. 1456); Fourmile Lake, Klamath 
County, in meadows, and between Diamond and Crescent Lakes, Cascade 
Mountains. 
