Limonium busianum Bogdanović & Brullo, 2015

Bogdanović, Sandro & Brullo, Salvatore, 2015, Taxonomic revision of the Limonium cancellatum group (Plumbaginaceae) in Croatia, Phytotaxa 215 (1), pp. 448-450 : 448-450

2. Limonium busianum Bogdanović & Brullo , sp. nov.

Type: — CROATIA. Central Dalmatia: Dalmazia, isola di Biševo, Mezoporat, iznad Modre špilje, 22 July 2007, Bogdanović s.n. (holotype CAT!; isotypes CAT!, ZAGR!) ( Figs. 3 , 32 ) .

TAXONOMIC REVISION OF THE LIMONIUM CANCELLATUM GROUP

Phytotaxa 215 (1) © 2015 Magnolia Press • 11 Diagnosis: — Planta pubescens , dense foliosa apice caudicularum, foliis linearia-spathulatis, retusis apice, revolutis margine, 1-nerviis, scapis prostratis vel adscendentibus, flexuosis, ramis sterilibus paucis, inflorescentia pauciramosa, bractea inferiore ovata, obtusa, bractea superiore ovata, obtusa, calice tubo dense piloso, nerviis pilosis, lobis triangularibus, acutis.

Description: —Plant perennial, 10–30 cm tall, hairy (hairs up to 0.1–0.15 mm long), with robust tap-root. Caudices branched, 1–5(–7) cm long, densely covered by leaves in the upper part. Leaves rigid, rugose, hairy, green, 7–30 mm long, 3–5 mm wide, linear-spathulate, retuse at the apex, revolute at the margin, 1-nerved, gradually tapering into a long petiole. Stems numerous, prostrate to ascending, rugose, with few sterile branches, flexuous, fragile at nodes, very branched, diverging at the angle of 70–140(–180)°, internodes 5–13 mm long, right to curved. Inflorescence reticulate, branched from the base; spikes 5–25 mm long, straight to curved. Spikelets 4.5–4.8 mm long, 2–3 flowered, 5–6 per cm; outer bract 1.1–1.3 mm long, 1.4–1.5 mm wide, widely ovate, obtuse, hairy, margin narrowly membranous, and central part fleshy, acuminate; middle bract 1.3–1.4 mm long, 1.2–1.5 mm wide, ovate, obtuse, membranous, hairy on the veins and between them; inner bract 2.7–3 mm long, 2.2–2.4 mm wide, ovate, obtuse, with margin membranous, glabrous, 0.3–0.4 mm wide, and central part fleshy, densely hairy, 1.4–1.8 mm wide, acuminate, forming a triangular tip, 0.4–0.5 mm long, no reaching the upper margin. Calyx 4–4.5 mm long, exserted 1.4–1.8 mm from the inner bract, densely hairy in the tube and ribs; ribs reaching the middle part of the lobes; calyx lobes triangular, 0.7 × 0.5–0.6 mm, acute. Corolla lilac.

Etymology: —From “Busi” old name of Biševo island.

Distribution and ecology: —This species grows on the calcareous rocky coast and cliffs. It is circumscribed to Biševo ( Fig. 29G ), small island of Vis archipelago (C. Dalmatia).

Additional specimens examined (Paratypes): — CROATIA. Central Dalmatia: Insel Busi, auf dem Felsen der “Blauen Grotte”, 20 July 1914, Ginzgerber s.n. ( WU!) ; Dalmatien, Insel Busi, 19 May 1905, Kindt s.n. ( WU!) ; o. Biševo, Mezoporat, stijene iznad Modre špilje, 25 August 1970, PavletiĆ s.n. ( ZA!) ; Insula Biševo, in valle Trešjavac, in congeriebus lapidosis, solo calcareo, exp. W–SW, cca 15–20 m s.m., 26 July 1981, Korica s.n. ( ZA!) ; o. Biševo, Sarbunara, stijene uz more, 16 August 1972, PavletiĆ s.n. ( ZA!) .

Figures

FIGURE 3. Limonium busianum. A. Inflorescence branches. B. Spikelets. C. Outer bracts. D. Middle bracts. E. Inner bract (lateral view). F. Inner bracts (dorsal view). G. Calyces. H. Calyx lobes. I. Leaves. J. Leaf indumentum (adaxial face). K. Leaf indumentum (abaxial face) (Illustration by Salvatore Brullo based on Bogdanović s.n.. type CAT).

FIGURE 29. Geographical distribution of Limonium milovicii (A). L. omissae (B). L. velutinum (C). L. pharosianum (D). L. subanfractum (E). L. issaeum (F). L. busianum (G). L. brusnicense (H). L. zankii (I). L. vestitum (J). L. pomoense (K). L. cazzae (L). L. lagostanum (M) and L. pelagosae (N).

FIGURE 32. Habit of Limonium busianum from holotype. Bogdanović s.n. (CAT).