Allgemeines. 529 



Wats. Proc. Am. Acad. 8: 526 (1873), is based on four specimens, 

 one from Washington Territory, one irom Vancouver 

 Island, one from Bear Lake, and one from the Polar 

 Sea, and the last of these is the type, as that is the only one 

 of the four from the Arctic regions ; Cuscuta Cephalanthi 

 Engelm. Am. Jour. Sei. 43: 336 (1842), is based on specimens 

 from several hosts, of which the one from Cephalanthus is 

 the type. 



b) Among specimens equally eligible, the type is that first 

 figured with the original description, or in default of a 

 figure the first mentioned. 



Examples. — Calyptridium roseum S. Wats., Bot. King's 

 Exp. 44, pl. 6, f. 6—8 (1871), is based on at least three spe- 

 cimens, of which the one figured is the type ; Amica cordifolia 

 Hook. FI. Bor. Am. 1 : 331 (1833), is based on two specimens, 

 neither of which is figured, and the one first mentioned. which 

 was collected by Drummond in alpine woods of the Rocky 

 Mountains, is the type. 



c) In default of an original speeimen, that represented by 

 the identifiable figure or, in default of a figure, descrip- 

 tion first cited or subsequently published, serves as the 

 type. 



Examples. — Trillium sessile L. Sp. PI. 340, is based on 

 three citations, of which the second is the type, being aecom- 

 panied by a figure; Centaurea Scabiosa L. Sp. PI. 913, is based 

 on a number of citations, of which the first mentioned is the 

 type, as no figures are cited. 



Canon 15. The nomenclatorial type of a genus or subgenus 

 is the species originally named or designated by the author 

 of the name. If no species was designated, the type is 

 the first species in order eligible under the following pro- 

 visions: 



a) The type is to be selected from a subgenus, section 

 or other list of species originally designated as typical. 



Examples. — Psilogramme Kuhn, Festschr. 50-jähr. Jub. 

 Königs. Realschule zu Berlin, 332 (1882), is typified by the first 

 mentioned species of the second section Eupsilogranime, and not 

 from species included in the first section Jamesonia, which is 

 based on a generic name previously published; Phania DC 

 Prodr. 5: 114 (1S26), is typified by P. multicaulis DC, the only 

 species of the section Euphania. 



b) A figured species is to be selected rather than an un- 

 figured species in the same work; or, in the absence 

 of a figure, preference is to be given to a species ac- 

 companied by the citation of a figure. 



Examples. — Lespedeza Michx. Fl. Bor. Am. 2: 70 (1S03), 

 is typified by L. piociunbens Michx. loc. cit. pl. 39, the species 

 first figured; Basanacantha Hook. f. in Benth and Hook. Gen. 

 PI. 2: 82(1873), is typified by the citation of Randia tetracantha 

 (Cav.) DC., as this species had been figured by Cavanilles, 

 whereas Randia Humboldtiana DC, the species first mentioned 

 by Hooker, had not been figured. 



c) The types of genera adopted through citations of non- 

 binomial literature (with or without change of name), 

 are to be selected from those of the original species 

 which reeeive names in the first binomial publication. 



