(48) TENTAMEN FLOE.E LUÏCHUEXSIS. 315 



Forbes et Hemsl. Ind. Fl. Sin. I, p. öl) ; Henry, List PI. Formos. 

 p. 19. 



S. Alsine, Hofi'm. " FI. Germ. I, p. 153 "; Bunge Enum. 

 PI. Chin. Bor. p. 8. 



Ä aquatica, Poll. " P;ilut. p. 422"; DC. Prodr. I, p. 

 398 ; Ledeb. Fl. Alt. II, p. löG ; '' Hook. FL Bor. Am. I, 

 p. 93 "; Torr, et Gray, FI. N. Am. I, p. 186 ; " A Gray, 

 Man. Bot. X. Un. St. ed. 1, p. 02." 



S. thymifolia, Wall. " Cat. n. (33G." 



S. undulala, Tbunb. Fl. Jap. p. 18'"), ex Fenzl, iii Ledeb. 

 FI. Ross. I, p. 393; Sieb, et Zucc. FI. Jap. Farn. Nat. in 

 Abhandl. Akad. Muencli. l\ , pt. 2 (1845) p. 160. 



Larbrœa aquatica, St. Plil. " Mem. Plac. Lib. 81 "; DC. 

 Prodr. Ill, p. 366 ; '' Hook. FI. Bor. Am. I, p. 93." 



L. uliginosa, Hook. " FI. Bor. Am. I, p. 93 "; Hook. f. 

 in Journ. Linn. Sog. I, p. 116. 



LÙTCHÛ (Tashirol Febr. 1887, flor. et fructif.). 



DiSTRiB. Europe, Siberia, Japan, Formosa, Hongkong, 

 China, the Himalayas, Xortli Africa and North America. 



Arenaria, L. 



A. serpyllifolia, L. ex Hook, et Arn. Bot. Beech. 

 Voy. p. 259. 



LÛTCHÛ, ex Hook, et Arn. 



In his recent revision of the genus Arenaria (in Journ. Linn. 



Soc. XXXIII, 1898, p. 367), Dr. F. N. Williams has clearly 



shown that A. serj)yllifolla, L. and S. leptoclados, Giiss. are two 



distinct .species ; of these, S. leptoclados, Guss. is the only one 



