14 Charles V. Piper: 
Herbarium. Also collected at Clatsop, Oreg. by Coville, September, 1, 
1898 (no. 869). | 
This species is nearest related to L. groenlandicum, from which it 
may at once be distinguished by the absence of the tomentose pubes- 
cence. In this respect it resembles L. glandulosum alone, but the capsule 
characters are those of the former species. Its zonal position is appa- 
rently Humid Transition. 
143. Vaccinium macrophyllum (Hook.) Piper, 1. c., p. 443. 
Vaccinium myrtilloides macrophylla Hook., Fl. Bor. Am. Ii, 32; 1834. 
— Vaccinium membranaceum Dougl.; Hook, loc. cit.. as synonym. — British 
Columbia and Oregon to Lake Superior. 
144. Oxycoccus oxycoccus intermedius (A. Gray) Piper, |. c.. p. 444. 
Vaccinium oxytoccus intermedium A. Gray, Syn. Fl. ed. 2, If!, 396; 
1886. — British Columbia to northern Idaho and western Oregon. 
145. Dodecatheon vulgare (Hook.) Piper, l. c., p. 445. 
Dodecatheon integrifolium Michx. err. det. Hook., Fl. Bor. Am., II, 118; 
1838. — Dodecatheon integrifolium vulgare Hook., 1. c. — Dodecatheon meadia 
pauciflorum Durand, Pl. Pratt., 95; 1855. — Dodecatheon pauciflorum Greene, 
Pittonia, II, 72; 1890. — Washington to Saskatchewan and New Mexico. 
146. Dodecatheon puberulum (Nutt.) Piper, l. c., p. 445. 
Dodecatheon meadia puberula Nutt. Journ. Acad, Phila., VII, 48; 1834. 
Dodecatheon cusickii Greene, Pittonia, II, 73; 1890. — Dodecatheon puberu- 
lentum Heller. Bull. Torr. Club, XXIV, 311: 1897. — British Columbia to 
Oregon and Idaho. 
147. Dodecatheon latifolium (Hook.) Piper, 1. c.. p. 446. 
Dodecatheon integrifolium latifolium Hook., Fl. Bor. Am., II, 119; 1838. 
Dodecatheon hendersoni A. Gray, Bot. Gaz., II, 232; 1886. — Washington 
to California. 
148. Dodecatheon conjugens leptophyllum (Suksdorf) Piper, |. c., p. 446. 
Dodecatheon hendersoni leptophyllum Suksdorf, Deutsch. Bot. Monatss., 
XVII, 132: 1900. — Eastern Washington. 
149. Centaurion centaurium (L.) W. F. Wight apud Piper, l. c., p. 449. 
Gentiana centaurium L., Sp. PL, I, 229; 1753. — Erythraea centaurium 
Pers. Syn., I, 283; 1805. — Europe. 
150. Centaurion exaltatum (Griseb.) W. F. Wight apud Piper, l. c., 
p. 449. 
Cicendia exaltata Griseb. in Hook., Fl. Bor. Am., II, 69; 1838. — 
Erythraea douglasii A. Gray, Bot. Cal, I, 480; 1876. — Erythraea exaltata 
Coville, Contr. Nat. Herb.. IV, 150; 1893. — Eastern Washington to Cali- 
fornia and Utah. 
151. Centaurion muehlenbergii (Griseb.) W. F. Wight apud Piper, 1. c., 
p. 450. 
Erythraea muehlenbergii Griseb. Gen. & Sp. Gent, 146; 1839. — 
Erythraea curvistaminea Wittrock, Erythr. Exsice., IL 21; 1885. — Wa- 
shington to California. 
