Potamogeton gramineus L.

TRUMAN G. YUNCKER HERBARIUM
OF DEPAUW UNIVERSITY (DPU)
PURCHASED BY NY IN 1987
BOTANICAL
„garde^J
4Ô0
*y
£ *
DEPAUW UNIV.
HERBARIUM.
STEH-ANATOMY EXAMINED BY E.C.OGDEN, m*
0
STELE:
ENDODERMIS: O-cills	.	_
INTERLACUNAR BUNDLES: Absent'; Present; opter circle. throughout
SUBEPIDERMAL BUNDLES: Absent Present.
PSEUDO-HYPODERMIS: Absent: Present.
PLANTAE EXSICCATAE GRAYANAE
NEW YORK BOTANICAL GARDEN
03710096
1307. Potamogeton gramineus L.
Sp. PL 127 (l753); Graebn. in Engler, Pflanzenr. iv.
Fam. 11, 84 (1907); Hagstrôm in Sv. Vet. Akad. Handl.
lv. no. 5, 204, fig. 102 A-E (1916); Ogden in Rhodora,
xlv. 148, t. 746, fig. 86-88, map 10(l943), as var. typicus.
Syn. P. Proteus heterophyllus C. & S. in Linnaea, ii. 202,
t. 5, fig. 16c, f, g, h (1827). P. gramineus var. gramin\folius
Fries, Novit. FI. Suecicae, 86 (1828) et am. auctt. seq.
P. heterophyllus sensu Morong in Mem. Torr. Bot. Club,
iii. no. 2, 23 (1893); Taylor in N. Am. FI. xvii. 19 (l909).
non Schreb. P. heterophyllus forma graminifolius (Fries)
Morong in Mem. Torr. Bot. Club, iii. no. 2, 24 (l898).
P. heterophyllus forma longipedunculatus Morong, I.e. P.
gramineus var. longepedunculatus (Morong) Graebn. in Eng-
ler, Pflanzenr. iv. Fam. 11, 88 (l907). P. heterophyllus
forma terrestris sensu Robinson & Femald in Gray, Man.
ed. 7, 74 (1908). P. gramineus forma longipedunculatus
House in Bull. N.Y. State Mus. ccliv. 58 (1924) in part.
Shallow pool in shore sand about 10 meters from Lake
Michigan, St. Ignace, Mackinac County, Michigan.
Coll. E. C. Ogden, Edith M. Bolan (no. 1683)
August 2, 1937
03710096