1908] Robinson,— Notes on Vascular Plants 31 
Е. Wheeler. ‘This species was sent to Dr. Gray soon after its original 
collection. It was referred by him to Prof. Eaton, who evidently was : 
somewhat puzzled by it. He reported it as belonging to his W. 
scopulina remarking, however, upon its peculiar glandular puberu- 
lence. Much additional material of the real W. scopulina, a species 
frequent. from the Rocky Mountains westward, is now at hand and 
the constancy of the distinctions pointed out above is such as to war- 
rant the publication of the plant of Minnesota and Michigan as a 
separate species. 
SAGITTARIA LATIFOLIA Willd., forma obtusa (Muhl.), n. comb. 8. 
obtusa Muhl. Cat. 86 (1813). S. variabilis, var. obtusa Engelm. apud 
Gray, Man. ed. 5, 493 (1867). 
SAGITTARIA LATIFOLIA Willd., forma gracilis (Pursh), n. comb. S. 
gracilis Pursh, Fl. ii. 396 (1814). S. variabilis, var. gracilis Engelm. 
кш 
SAGITTARIA LATIFOLIA Willd., forma diversifolia (Engelm.), n. comb. 
S. variabilis, var. diversifolia Engelm. 1. c. 
LOPHOTOCARPUS CALYCINUS J. G. Smith, var. maximus (Engelm.), 
n. comb.  Sagittaria calycina, var. maxima Engelm. apud Torr. Bot. 
Mex. Bound. 212 (1859). 
Camassia esculenta (Ker), n. comb. Scilla esculenta Ker, Bot. Mag. 
t. 1574 (1813). C. Fraseri Torr. Pacif. К. Rep. iv. 147 (1856). Qua- 
massia esculenta Coville, Proc. Biol. Soc. Wash. xi. 65 (1897), where 
detailed and critical synonymy may be found. Q. hyacinthina Britton, 
Ill. Fl. i. 423 (1896).— It is to be carefully noted that the plant here 
called C. esculenta, dating back to the synonym of Ker (1813) is quite 
distinct from the C. esculenta of Lindley, a larger-flowered species of 
the Northwest, which, dating back merely to the synonym Quamasia 
esculenta Raf. Am. Month. Mag. ii. 265 (1818), must take the name 
Camassia quamash (Pursh) Greene, Man. Bay Reg. 313 (1894), a 
combination derived from the earlier Phalangium quamash Pursh, 
Fl. Am. Sept. 1. 226 (1814). 
Oxybaphus iinearis (Pursh), n. comb. Allionia linearis Pursh, Fl. 
728 (1814). Oxybaphus angustijolius Sweet, Hort. Brit. ed. 2, 429 
(1830). Allionia Bushii Britton, Bull. Torr. Bot. Club, xxii. 223 
(1895). 
POLYGONUM DUMETORUM, L., forma cristatum (Engelm. & Gray), 
n. comb. P. cristatum Engelm. & Gray, Journ. Bost. Soc. Nat. Hist. 
v. 259 (p. 51 of the reprint), 1845.— Repeated examinations of many 
