Joniris (Spach) Klatt, Bot. Zeitung (Berlin), 1872

Crespo, Manuel B., Martínez-Azorín, Mario & Mavrodiev, Evgeny V., 2015, Can a rainbow consist of a single colour? A new comprehensive generic arrangement of the ‘ Iris sensu latissimo’ clade (Iridaceae), congruent with morphology and molecular data, Phytotaxa 232 (1), pp. 448-450 : 448-450

10. Joniris (Spach) Klatt, Bot. Zeitung (Berlin) 30: 502 (1872), hoc loco emend. M.B.Crespo, Mart.-Azorín & Mavrodiev [≡ Iris subg. Joniris Spach, Hist. Nat. Vég. 13: 35 (1846); I. subsect. Ruthenicae Diels in Engl. & Prantl, Nat. Pflanzenfam. ed. 2, 15a: 502 (1930)]. Type (holotype):— J. ruthenica (Ker Gawl.) Klatt, Bot. Zeitung (Berlin) 30: 502 (1872) [≡ Iris ruthenica Ker Gawl., Bot. Mag. 28: t. 1123 (1808)]

Description:—Rhizomatous herbs, with deciduous aerial structures. Rhizome many-branched, slender, creeping, coated with fibrous-hairy remains of leaf bases; roots numerous fibrous. Stems aerial, usually slender and short, ± elliptic in cross section. Leaves isobilateral, linear, long acuminate, slender, with 3–5 prominent ribs, ± glaucous, equitant, not fetid, surrounded by brownish fibres at base. Flower solitary, terminal, shortly pedicellate. Spathe valves 2, herbaceous, inflated, usually with reddish margins at anthesis, ± lanceolate, acute to subobtuse, not keeled. Perigone in 2 rows, ± differing in size and shape, fused in a short tube; falls erect-patent, broadly oblanceolate, patent towards apex, gradually tapering into claw, smooth; standards erect, narrowly oblanceolate, acute, narrowed into a long haft. Stamen filaments free, adnate to the fall bases. Ovary trilocular, with axile placentation. Style filiform, with 3 petaloid branches, up to half the length of falls, each one concealing a stamen; crests long, ± straight, subquadrate to roundish, with dentate margins; stigma triangular, apiculate, with entire margins. Capsule globose to obovoid, trigonous, with 6 weak longitudinal ribs, reticulate-nervose, ± hidden into spathes, pointed, dehiscing from apex to about middle (valves curling back after dehiscence), unbeaked; pericarp subcoriaceous. Seeds numerous, globose to pyriform, with a whitish, fleshy raphe vanishing on drying; testa surface ± smooth. p = 8. Figs. 4F , 18C–D .

It includes 4 species, occurring from eastern Europe (Transylvania) to eastern Asia (the Korean Peninsula and eastern China) ( Fig. 20A ).

Needed new combinations:— Joniris brevituba (Maxim.) M.B.Crespo, Mart. -Azorín & Mavrodiev, comb. nov. Basionym: Iris ruthenica var. brevituba Maxim., Bull. Acad. Imp. Sci. Saint-Pétersbourg , sér. 3, 26: 516 (1880). Joniris caespitosa (Pall. ex Link) M.B.Crespo, Mart. -Azorín & Mavrodiev, comb. nov. Basionym: Iris caespitosa Pall. ex Link, Jahrb. Gewächsk. 1(3): 71 (1820). Joniris uniflora (Pall. ex Link) M.B.Crespo, Mart. - Azorín & Mavrodiev, comb. nov. Basionym: Iris uniflora Pall. ex Link, Jahrb. Gewächsk. 1(3): 71 (1820). Joniris uniflora var. caricina (Kitagawa) M.B.Crespo, Mart. -Azorín & Mavrodiev, comb. nov. Basionym: Iris uniflora var. caricina Kitagawa, Bot. Mag. (Tokyo) 49: 232 (1935).

Figures

FIGURE 4. Flower morphology: falls, standards and stylar branches, sometimes with spathe bracts (cont.). A) Limniris sibirica (photo: Frank Hoehnel); B) Limniris chrysographes (photo: Ken Walker); C) Limniris sanguinea (photo: Andrej Baryshenko); D) Eremiris lactea (photo: Andrey Korzun); E) Sclerosiphon songaricum (photo: Vladimir Kolobincev); F) Joniris brevituba (photo: Georgy Lazkov); G) Phaeiris giganticaerulea (photo: Rodney Barton); H) Zhaoanthus henryi (photo: Ken Walker); I) Zhaoanthus minutoaureus (photo: Dennis Kramb); J) Iridodictyum reticulatum (photo: Sean Zera); K) Iridodictyum danfordiae (photo: Peter Bohnert); L) Cryptobasis mariae (photo: Yuriy Danilevsky).

FIGURE 18. Habit and floral details. A) Eremiris lactea (Lindley 1840: t. 1); B) Sclerosiphon songaricum (photo: Vladimir Kolobincev); C) Joniris ruthenica (photo: Aleksandr Kostjukov); D) Joniris ruthenica (Ker Gawler 1811: t. 1393); E) Phaeiris fulva (Small 1927: t. 388).

FIGURE 20. Approximate distribution areas: A) Joniris (yellow); B) Cryptobasis (red); C) Syrianthus (green).