1919] Fernald,— Lomatogonium 197 
kenzie, its northernmost stations seem to be Hopedale, Labrador 
(lat. 55? 27’), Churchill, Keewatin (lat. 58° 40’) and Edmonton 
Alberta (lat. 53° 30’). | 
The forms of Lomatogonium rotatum may be designated as follows. 
LoMATOGONIUM RoTATUM (L.) Fries, forma typicum. Swertia 
rotata L. Sp. Pl. i. 226 (1753).— Leaves and calyx-segments lanceolate 
or lance-linear, acuminate. 
L. ROTATUM, forma americanum (Griseb.), n. comb. Pleurogyne 
rotata, y americana Griseb. Gen. et Sp. Gent. 309 (1839).— Leaves and 
calyx-segments oblong or oblong-lanceolate, bluntish. 
L. roratum, forma ovalifolium, n. f., foliis laciniis calycisque 
ovalibus vel ovato-oblongisobtusis. TYPE from MAGDALEN ISLANDS: 
grassy bank near shore, Amherst Island, August 25, 1914, St. John, 
no. 1970 (herb. Gray). 
L. norATUM, forma tenuifolium (Griseb.), n. comb.  Pleurogyne 
rotata, 8. tenuifolia Griseb. |. c. (1839). P. fontana A. Nelson, Proc. 
Biol. Soc. Wash. xvii. 177 (1904).— Leaves and -calyx-segments 
linear-attenuate. 
Many species have been described, chiefly from Asia, while only 
one species besides L. rotatum is known in Europe and a single species 
on Madagascar. Several of the proposed Asiatic species seem to be 
minor variants rather than true species and some, naturally, are now 
considered quite inseparable from earlier-described species. So far 
as the writer has been able to recognize the species they are as follows; 
but fuller material will doubtless show that several recently proposed 
species with which he is unfamiliar are to be recognized. 
LoMATOGONIUM ROTATUM (L.) Fries. See above. 
L. CARINTHIACUM (Wulf.) Reichenb. Fl. Germ. Excurs. 421 (1831). 
Swertia carinthiaca Wulfen in Jacq. Misc. ii. 53, t. 6 (1781).— The 
TYPE of Lomatogonium, but the specific combination not definitely 
made by A. Braun. 
L. canuiNTHIACUM (Wulf.) Reichenb., var. Stellerianum (Cham. & 
Schl.), n. comb. Gentiana Stelleriana Cham. & Schl. Linnaea, i. 188 
(1826). Pleurogyne himalayensis Klotsch in Klotsch & Garcke, Bot. 
Ergeb. Waldem. Reise, 91, t. 68 (1862). ! 
L. Forresti (Balf. f.), n. comb. Pleurogyne Forresti Balf. f. Notes 
Roy. Bot. Gard. Edinb. no. xvii. 78, t. 18 (1907). 
L. brachyantherum (C. B. Clarke), n. comb. Pleurogyne brachy- 
anthera C. B. Clarke in Hook. f. Fl. Brit. Ind. iv. 120 (1885). 
L. Thomsoni (C. B. Clarke), n. comb. Pleurogyne Thomsoni 
C. B. Clarke in Hook. f. Fl. Brit. Ind. iv. 120 (1885). 
L. macranthum (Diels & Gilg), n. comb.  Pleurogyne macrantha 
Diels & Gilg in Futterer, Durch Asien, Bot. Repr. 17, t. 2 (1903). 
