TABLE 2 in Lithophyllum artabricum V. Peña, sp. nov. (Corallinales, Rhodophyta): a cryptic species in the Atlantic Iberian Peninsula hitherto assigned to Lithophyllum stictiforme (Areschoug) Hauck

TABLE 2. — Comparative table of Lithophyllum artabricum V.Peña, sp. nov., the Mediterranean L. stictiforme and cryptic clades (2 to 10) uncovered under this species complex, and L. lobatum. Data from: 1, Lemoine (1929); 2, Hamel & Lemoine (1953); 3, Bressan & Babbini (2003); 4, Pezzolesi et al. (2019); 5, present study.
Lithophyllumartabricum LithophyllumLithophyllumsp. nov. 5stictiforme 4 Clade 24Clade 34 Clade 44 Clade 54 Clade 64 Clade 74Clade 84Clade 94 Clade 104 lobatum 1-4Habit LamellaeLamellaeLamellaeThickLamellaeLamellae Lamellae LamellaeLamellaeLamellae LamellaeLobedcrustscrustsSize Up to 10 cm Up to 25 cm Up to 7 cm Up toUp toUp toUp to Up toUp toUp toUp toUp to10 cm8 cm8 cm7 cm8 cm4 cm15 cm5 cm3 cmColor Light pink, Violet,Light toGrayishGrayishDark toGrayish GrayishPinkDark toPink,Red pink,dark pink, magenta, brightvioletviolet to grayish violet to pinkgrayish mauvegreyishvioletdark pink pinkto darkmauvepinkmauvepinkpinkConcentric lines+(usually)(usually)+/–(usually)+++––+Present(lower surface)Maximum <2.51.8<12.5<11.7<0.5 <1<0.5–<1 mm3-4thickness (mm)Thallus Monome-MainlyMainlyMainlyMainlyMainlyMainly MainlyMainlyMainlyMainlyDimerousconstructionrousdimerous dimerous dimerous dimerous dimerous dimerous dimerous dimerous dimerous dimerousMedullary cells6-474.5-284-294-184-154-155-54-109-147-1010-25–(length, µm)Medulllary4-274-184-207-204-155-155-154-1617-238-165-1010-20cells (height /diameter, µm)Cortical cells(3) 4-195.5-42.58-389-507.5-255-204-185-229-1813-257-24(5) 10-20 (40)(length, µm)Cortical cells3-213-204.5-227-219-185-166-203-147-148-135-115-15(diameter, µm)Number1(2)1-21-21(2)1-2111 -2111-2–epithallial cellsShape epithallial FlattenedFlattenedFlattenedFlattened Flattened Flattened Flattened FlattenedFlattenedFlattened FlattenedFlattenedcellsEpithallial cells1-31-7.50.5-7.51.5-7.54-7.52.5-63 - 81-62 52.5-41-3–(length, µm)Epithallial cells6-133-142.5-156-289-156-148 - 145-118-10.510-12.5 2-115-7.0(diameter, µm)Trichocytes–(+)+––(+)–(+)––––Tetra/ FlushSlightlyFlush toSlightlySlightlyFlushFlush SlightlySlightly–SlightlyNotbisporangialwith theprotruding protruding or notor notwith the with the or notor notor notprotrudingconceptaclessurfaceor flushprotruding protruding surface surface protruding protrudingprotruding(surface view)with thesurfaceShape of pore TaperingCylindricalCylindrical TaperingTaperingTaperingTapering Tapering–TaperingTapering–canal (fromor tapering orbottom to top)taperingShape tetra / DumbbellDumbbellDumbbellDumbbell / Dumbbell Dumbbell Dumbbell Dumbbell–Dumbbell DumbbellDumbbell,bisporangialEllipticalround,conceptaclereniformchamberTetra /96-12780-32080-330150-270 180120-200 91-237 76-240–160-230 76-116–bisporangialconceptaclechamber(height, µm)Tetra /236-448328-440350-460 320-430 320-330 300-340 93-335 244-300 –290-320 260-290 180-250bisporangialconceptaclechamber(diameter, µm)Columella++++++++–++–Roof thickness8-144-153-125-64-95-68-97-8–9-105-9–(number ofcells)Depth of14-2514-2310-1714-1511-1314-1513-1412-17–15-1613-16–conceptaclefloor (cellsfrom bottom tothallus surface)Buried++++–+–+–––+conceptaclesHabitat SubtidalCoralli-Coralli-Coralli-Coralli-Coralli-Coralli- Coralli-Coralli-Coralli-Coralli-Subtidalbedrockgenousgenousgenous genousgenous genous genousgenousgenous genousDistribution in AtlanticMediter-Mediter-Mediter-Mediter-Mediter-Mediter- Mediter-Mediter-Mediter-Mediter-Macaronesiathe EuropeanIberianraneanraneanranearanearanearanearanearanearanearanea(CanarycoastsPeninsulaIslands),Mediter-ranean