Vogtiinae Oberpr. & Töpfer, 2022

Oberprieler, Christoph, Töpfer, Alisha, Dorfner, Marco, Stock, Miriam & Vogt, Robert, 2022, An updated subtribal classification of Compositae tribe Anthemideae based on extended phylogenetic reconstructions, Willdenowia 52 (1), pp. 117-149 : 129

11. Vogtiinae Oberpr. & Töpfer , subtrib. nov.

Type: Vogtia Oberpr. & Sonboli ( Vogtia microphylla (DC.) Oberpr. & Sonboli ).

Description — Annual herbs. Indumentum of long and slender, appressed, medifixed hairs mixed with sessile glands. Leaves alternate and in axillary fascicles, simple and linear-lanceolate to 1- or 2-pinnatisect. Capitula in dense corymbs with up to 40 capitula, shortly pedunculate to sessile, discoid. Involucre hemispheric. Phyllaries in 2 or 3 rows, with yellowish or whitish, scarious, apically rounded and reflexed or subacute margins. Receptacle epaleate. Disc florets hermaphrodite, fertile; corolla 4- or 5-lobed, yellow, basally not clasping top of achene. Anthers with pointed, triangular apical appendages; pollen of “ Anthemis type ” with distinct spines. Achenes obovoid, with 8–10 very thin and narrow ribs; apex with a very short corona of protruding ribs forming teeth, c. 0.1 mm; pericarp without myxogenic cells and without resin sacs or ducts. Testa epidermis of an epidermal type (i.e. with undulating anticlinal walls). Embryo sac development unknown. Base chromosome number x = 9.

Distribution — Europe ( France, Spain, Portugal), N Africa ( Morocco).

Members — Vogtia Oberpr. & Sonboli (2). Notes — The genus Vogtia with its two members, V. annua and V. microphylla , was erected as a result of a phylogenetic analysis of the genus Tanacetum based on nrDNA ITS and cpDNA trnH-psbA sequence variation done by Sonboli & al. (2012), who found the latter of the two species consistently and significantly excluded from a clade formed by further members of Anthemidinae ( Anthemis , Archanthemis , Cota , Nananthea , Tanacetum , Tripleurospermum , Xylanthemum ) and Matricariinae ( Achillea , Anacyclus , Heliocauta , Matricaria ). Originally described as members of Tanacetum , the two species are distinctly deviating from all other species of this genus by their annual life form. The unique phylogenetic position of Vogtia corroborated by the present gene- and species-tree reconstructions is morphologically supported by the pointed apical appendages of the anthers and the testa epidermis with undulating anticlinal walls. While the latter is unique in the whole tribe, the former is observed in all members of Artemisiinae , “though variously expressed” ( Bremer & Humphries 1993).