242 K. MIYABE ON THE 



This plant is closely related to the preceding species, with which Herder proposed 

 even to unite it. According to the descriptions given by I)e Candolle and Ruprecht, it 

 differs from A. Ptarmica, var. speciosa, in the following characters: — teeth of the leaves 

 more prominent and not incnrvedly appressed; pednncle elongated; rays 8-9, obovate- 

 elliptical; chaff on the receptacle oblong, serrate from the middle upward, fuscous, and 

 subtrifid at the apex. 



141. Chrysanthemum arcticum, L. Sp. ed. 2, p. 889; Hook, Fl. Boi'.-Am. I, p. 319- A. 



G''^Vj Synop. Fl. I, p. 365. Leucantliemum arcticum, DC. Prodr. vi, p. 45; 

 Ledeb. Fl. Ross, ii, p. 541; Max. Prim. Fl. Amur. p. 155; Fr. & Sav. Enum' 

 I, p. 234. 

 Hob. Urupf (ex Max.). Morofu, on rocky cliffs at Tsurubetsu. 

 Professor Maximowicz kindly informs me that his Urup specimen is of " the laro-e- 

 headed form with pinnatifid leaves of Hakodate." My Etorofu plant is also of the same 

 form. 



Distrih. In northeastern Asia : coast regions of Manchuria, Saghalin, northern Japan ; 

 all around the Ochotsk Sea, Kamtschatka and adjacent islands to the Behring Strait. 

 In IsTorth America, from arctic Alaska along the arctic shores to Hudson Bay; also in 

 eastern Lapland, and arctic Russia. 



142. Matricaria ambigua, Ledeb. Fl. Alt. iv, p. 118, and Fl. Ross, ii, p. 547 (under Pyre- 



thrum). CJtam(e7nehimlimosum,Max. Prim. Fl. Amur. p. 156. Ghammmelon 

 tetragoriospermum, F. Schm. Fl. Sach. p. 148. Tripleurospermum ambiguum, 

 Fr. & Sav. Enum. i, p. 236. Trij)leuros2)ermum inodorum, var. amliguum, Her- 

 der, PI. Radd. m, 2, p. 42. 

 HaJj. Shikotan, in grassy places about the harbor, 



Distrih. Northern Eiu-ope and Asia, extending southward to southwestern Siberia 

 and the Altai region, and to Manchuria, Saghalin and northern Japan; according to 

 Herder also at Kotzebue Sound in Alaska. 



143. Matricaria discoidea, DC. Prodr. vi, p. 50; Ledeb. Fl. Ross, ii, p. 544; A. Gray, 



Synop. Fl. I, ]). 364; Reg. & Til. Fl. Ajan. p. 102. 



Hah. Urnp! {ex Ma->i.). 



Distrih. Eastern Siberia in the Ochotsk region, Kamtschatka, and the Kurile Islands ; 

 through the Aleutian Islands and Alaska to western California, thence to Montana; 

 now naturalized in the Atlantic states of North America, and in northern and middle 

 Europe. 



144. Artemisia laciniata, Willd. Sp. ui, p. 1843; Besser, Tent. Abrot. p. 40; Ledeb. Fl. 



Ross, n, p. 581; Max. Mel. Biol, vm, p. 530.— Yar. laciniata, Max. I. c! 

 Hah. jShikotan, on cliffs along the harbor, 



Distrih. In Siberia from the Altai to the Ochotsk region; also in Dahuria, Mongolia, 

 eastern Manchui-ia, and the southern Kuriles. 



145. Artemisia glomerata, Ledeb. in M6m. Acad. Petersb. v, p. 564, Fl. Ross, ii, p. 588; 



Bess. Abrot. p. 63; Max. Mel. Biol, vm, p. 532; A. Gray, Synop. Fl. i, p. 37o! 

 A. leontopodioides, Fisch. ex Besser, Abrot. p. 63. 

 Hah. Kurile Islands! (Pallas ex Max.). 



