1903.] OBSERVATIONS ON THE FLORA OF JAPAN. 55 



OwARi: Tashiro-mura (T. Mah'nol October 29, 1893), Prov. Mikawa : 

 Takashi-mura (T. Maldnol October 25, 1893), Atsiimi-gori (T. Mahino\ 

 Oct. 27,1893); Prov. Musashi : Shiraura {T. Mahino\ Oct, 30, 1898), 

 Nippori {R. Yatahe and J. Maisumura ! herb. Sc. Coll. Imp. Univ. Tokyo, 

 Nov. 5, 1884) ; Prov. Idzumi : Kusabe-mura {8. 3iatsuda ! herb. ibid. Oct. 

 25, 1896). 



Allied to Sioertia chinensts Hemsl et Forbes. It grows in muddy 

 place in field, and its roots do not contain the bitter principle. 



Swertia ehinensis (Bunge) Hemsl. et Forbes in Journ. Linn. Soc. 

 XXVI. p. 139, non Franch. = 0/)/zeZm chinensis Bunge; Ophelia diluta 

 Ledeb. ; Sivertia diluta Benth. et Hook, fil.; Swertia rotata Thunb. non 

 Linn.; Pleurogyne rotata. Sieb. et Zucc. non Griseb. 



We distinguish two forms : — 



a. vulgaris : stem slender, fastigiately ramose ; pedicels slender ; 

 corolla white with violascent line^. 



b. violacea : stem stouter, taller, attaining 5 decim. in height, ramose 

 above ; flowers paniculate, larger, beautifully violaceous, corolla-lobes broader ; 

 pedicels short. 



Ajuga (Bugula) reptans Linn, var, japonica Makino in sched. herb. 

 Sc. Coll. Imp. Univ. Tokyo, et in Bot. Mag., Tokyo, XII. (1898) p. 228. 



AJuga decumhens f. erecta Savatier in linuma's Somoku-Dzusetsu, ed. 

 2, XL fol. 6 recto, no. 5. 



? AJuga decumhens x- glahrescens Franch. et. Sav. Enum. PI. Jap. 

 n. p. 466. 



Perennial, 1-4 decim. high, stoloniferous ; stolons 1-9, slender, often long, 

 attaining about 4 decim. in length, remotely foliate ; rhizome short, erect, 

 or repent, rooting. Stems 1 to 8, erect but the lateral ones ascending, 

 remotely pauci-foliate, villose, the internode long, the longest one 

 23 cm. Leaves petiolate, erect-patent, oblong, elliptical, ova to-oblong, or 

 ovate, obtuse, sinuate, or repand-sinuate, herbaceous, flaccid, pilosulate 

 or glabrous, veins loose ; the petiole short or long ; after flowering and 

 fruiting the radical leaves become glabrous and often become much increased 

 in size, attaining 20 era. in length including the petiole. Spike 4-25 cm. long, 

 simple, erect ; verticillasters tri-quinqueflorous, sessile, shorter than bracts, 

 the lower ones remote ; rachis villose, the lower internode often elongated ; 



