PLANTS COLLCETED IN JAPAN. 317 



flowering becomes thickened and obconical under the calyx ; and the pedicel becomes patent, or 

 sometimes even recurved. I have not the fruit of this form, nor of Bunge's Chinese plant. 

 But I have little doubt of its being specifically the same as the next, viz : 



Erichitum pedunculare, DC. I. c. p. 128. Mysotis pedunculare, Trev. M. clavata, Blurne, 

 ex Turcz. Simoda. Accords well with the plant from Astrachan. Achenia minutely punc- 

 tate under a strong lens, minutely pilose-puberulent, or soon entirely glabrous, at least on the 

 outer face ; insertion lateral, at or near the base, by means of a very small stipe. 



Omphalodes? Apparently undescribed, and not to be properly characterized in the 



absence of the fruit. It does not accord with the description of Cynoglossum Japonicum, Thunb. 

 Hakodadi. 



Calystegia Soldanella, R. Br.; Chois. in DC, Prodr. 9, p. 433. Simoda ; on the sea-beach. 



Solanum nigrum, Linn. Simoda ; and in almost every part of the world. 



Phtsalis Alkekingi, Linn. Simoda. 



Gentiana Thunbergii, Griseb. in DC. Prodr. <d,p. 108 ; Sieb. & Zucc, Fam. Nat. Fl. Jap. 

 1. c. p. 34. G-. aquatica, Thunb. Natsima or Webster's island ; April, on hill-sides. The 

 smallest plants are only an inch or two in height, and one-flowered ; the larger are fastigiately 

 5-9-flowered. The leaves are all orbicular or round-ovate, and abruptly cuspidate. Corolla an 

 inch long. 



Gentiana squarrosa, Ledeb. Lc. PL Alt. t. 14, & Fl. Boss, o, p. 63 ? Yokohama. 



Menyanthis trlfoliata, Linn. Hakodadi. Not before recorded from Japan. 



Malouetia Asiatica, Sieb. & Zucc, I. c. p. 39. Nerium divaricatum, Thunb. Simoda. In 

 flower. 



Vincetoxicum Japonicum, Morr. & Decaisne; DO. Prodr. 8, p. 524. Simoda. 



Ligustrum Japonicum, Thunb. Fl. Jap. p. 17 ; Sieb. & Zucc, I. c. Simoda. 



Ligustrum Ibota, Sieb.; Sieb. & Zucc. I. c. Simoda. 



Fraximus Sieboldtiana, Blurne, Mus. Bot. Lugd. \,p. 311. Simoda, on dry mountains ; also 

 cultivated. 



Polygonum aviculare, Linn. The var. erectum, or nearly. Simoda ; in rice fields. 



Polygonum Japonicum, Meisn. in DC. Prodr. 14, p. 112. Simoda. Depauperate specimens. 



Polygonum Chinense, Linn. var. Thunbergianum, Meisn. in DC. Prodr. 1. c. p. 130. Simoda. 



Polygonum Thunbergii, Sieb. & Zucc. I. c. (sine descr.); Meisn. I. c. p. 132. P. arifolium, 

 Thunb. Simoda. This is indeed closely allied to our P. arifolium, nor is there any difference 

 in the hairiness of the leaves and the shortness of the petioles (which in these specimens are quite 

 as long as in the American plant,) and perhaps not much in the shape of the achenium, but 

 I have not seen ripe fruit. The style, however, is three-cleft, and the stamens 7 or 8 ! The 

 posterior lobes, as far as the specimens go, are shorter and less acute than in P. arifolium, and 

 (which most inclines me to view the Japanese plant as specifically distinct) the very short 

 ochreas bear a pretty large and foliaceous, reniform, or 2-cleft, spreading limb, much larger 

 than the sheathing portion, while there is nothing like this in the American plant. 



Polygonum Sieboldii, Meisn. 1. c. p. 133. P. sagittatum, Thunb. Simoda. The specimens 

 are too young and depauperate for full comparison with Meisner's characters, and for demon- 

 strating its distinctness from P. sagittatum, at least from the Siberian form of that species. 



Polygonum Convolvulus, Linn.; Thunb. Fl. Jap. p. 169. Simoda. As far can be determined 

 the same as the European and American plant. 



