Sagina micropetala Rauschert

Dillenberger, Markus S. & Kadereit, Joachim W., 2022, The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals, Willdenowia 52 (1), pp. 5-23 : 20

3. Sagina micropetala Rauschert in Feddes Repert. 79: 413. 1969

≡ Sagina apetala var. erecta Hornem., Fl. Danica [Hornem.] 12: 3, tab. MCII. 1834

≡ Sagina apetala subsp. erecta (Hornem.) F. Herm., Fl. Deutschl. Fennoskand. : 182. 1912.

– Lectotype (designated here): [ Germany], Heiligenhaven, Aug 1825, Nolte s.n. (C 10024083 specimen no. 3 on sheet; Fig. 2 ). – Protologue: “Inter segetes solo pingui ad Heiligenhaven, Blankenese, Altonam et Buchholz Lauenburgise legit celeberr. Professor Nolte” . – Note: The protologue does not provide separate information for var. erecta and var. decumbens . Specimen no. 3 on the sheet consists of three large plants all belonging to S. micropetala and has the correct location, collector and date. Specimen no. 1 seems to include var. decumbens , no. 2 lacks a date, and label information of no. 4 does not fit the protologue.

= Sagina schiraevskii Tzvelev in Bot. Zhurn. (Moscow & Leningrad) 87(3): 122. 2002. – Holotype: Ukraine, prope opp. Starobeljsk, in arena humida, Aug 1904, J. Schiraevski s.n. ( LE n.v.; isotype: LE n.v.). – Note: Tzvelev (2002) gave as main differences to S. apetala and S. micropetala the indumentum of the plant and the shorter apex of the leaves. Considering the morphological variability of the group, we treat this name as a synonym of S. micropetala , based on its obtuse, cucullate and mucronate (mucro incurved) sepals, which are spreading horizontally in fruit.

Figures

Fig. 2. Lectotype of Sagina micropetala – specimen no. 3 on the sheet: [Germany], Heiligenhaven, Aug 1825, Nolte s.n. (C 10024083). – Reproduced with permission of the Natural History Museum of Denmark.