146 MISSOURI BOTANICAL GARDEN. 
base, 4-5 cm. long, 7-9 mm. wide. Scape as long as the 
leaves; verticils two or three; fertile pedicels slender, 3-5 
em. long; fruiting head 8 mm. in diameter. Achenia obo- 
vate-cuneate, 2 mm. long, with a somewhat rounded or 
inflated dorsal wing or crest extending from the base of 
the short beak. New Mexico: Type No. 1899, C. Wright, 
1852. No. 679, Wright, 1849, New Mexico, may also be 
referred here though the only specimen examined was 
fragmentary and imperfect. — Plate 53. 
LopHoTocaRrPus CALIFORNICUS N. sp. 
_ Submerged aquatic, 3-4 dm. high, with weak, slender, 
ascending petioles 8-4 dm. long. Blades hastate or sag- 
ittate, the middle lobes 4-8 cm. long, lanceolate, acute, 
5-nerved, the basal lobes widely divergent, }—} as wide as 
the middle one, and shorter than or equaling it in length, 
linear-acuminate. Scape slender, nearly as long as the. 
petioles, bearing 3-5 verticils of flowers, those of the two 
or three lowermost fertile. Bracts of the fertile whorls 6-7 
mm. long, those of the upper staminate verticils 1 cm. 
long. Pedicels of the fertile florets 1-2 cm. long, equal- 
ing the staminate. Sepals orbicular, 6-9 mm. long. 
Verticils about the length of the fertile pedicels apart. 
Fruiting head 10-12 mm. in diameter. Immature achenia 
obeuneate, 1.5 mm. long, with a minute horizontal beak, 
broadly winged on each margin. — Plate 54. 
Type No. 1136, S. B. & W. F. Parish, Coyote Creek, 
Los Angeles Co., California, October, 1891; also collected 
by J. A. Sanford, Stockton, Cal., July 16, 1893; both in 
Herb. Mo. Bot. Gard. 
With the exception of an unidentifiable fragment in the 
Gray Herbarium, these collections are the only specimens 
of Lophotocarpus from California in either the Columbia, 
Harvard, St. Louis, or National Herbaria. 
L. Californicus differs from L. calycinus in the very 
long, slender-petioled leaves, slender scape with 5 or more 
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