Silene microsperma subsp. modesta (Boiss. & C.I.Blanche) Eggens, F.Jafari & Oxelman, comb. et, 2020

Eggens, Frida, Jafari, Farzaneh, Thollesson, Mikael, Crameri, Simon, Zarre, Shahin & Oxelman, Bengt, 2020, Phylogeny and species delimitation in Silene sect. Arenosae (Caryophyllaceae): a new section, PhytoKeys 159, pp. 1-34 : 1

publication ID

persistent identifier

treatment provided by

PhytoKeys by Pensoft

scientific name

Silene microsperma subsp. modesta (Boiss. & C.I.Blanche) Eggens, F.Jafari & Oxelman, comb. et

stat. nov.

8d. Silene microsperma subsp. modesta (Boiss. & C.I.Blanche) Eggens, F.Jafari & Oxelman, comb. et stat. nov.


20.0-50.0 cm tall, erect or sometimes spreading. Stem scabrous, pubescent in lower part, scabrous, glabrous with sessile glands in upper part; with 4-10 distinct internodes, the uppermost internode 3.0-6.0 cm long and obviously longer than the next upper internode. Cauline leaves oblanceolate 10.0-40.0 × 1.0-4.0 mm, pubescent. Calyx 13.0-15.0 mm long, campanulate at anthesis and clavate in fruit, pubescent, scabrous; teeth unequal; shorter ones 2.0-3.0 mm, ovate, acuminate; longer ones 2.0-4.0 mm, lanceolate, acuminate; marginal hairs long (longer than 0.5 mm), dense. Inflorescence non-divaricate, branch axile (much) less than 90°. Petal claws 8.0-9.0 mm long, ciliate; limbs 3.0 mm long, bifid, white to pink, lobes oblong, petal limbs cleft to middle or more; coronal scales ca 1.0 mm long, ovate, apex entire or slightly erose. Anthophore 2.5-3.5 mm long, densely puberulent. Anthers included; filaments 6.0-9.0 mm long, glabrous or sparsely pubescent. Styles included. First pedicel 1.0-3.0 cm in flower, 2.0-4.0 cm in fruit, erect, glabrous, apex antrorse. Capsule 9.0-11.0 mm long, oblong or ellipsoid, robust. Seeds 0.6-0.8 mm wide, 0.6-0.7 mm high, testa smooth.


Palestine, Lebanon (Fig. 7 View Figure 7 ).


Distinguished by the short anthophore and long capsule that is unusually thick-walled and robust. This taxon has all the characteristics of a self-pollinating Silene , e.g. short anthophore, large capsule, small petal limbs, and anthers and styles included in the corolla mouth ( Aydin et al. 2014b). This taxon used to be considered as closely related to S. chaetodonta , but the molecular phylogenies (Figs 1 View Figure 1 , 3 View Figure 3 , 5 View Figure 5 ) show that " S. modesta " belongs in the S. microsperma -group. In order to emphasize this information, we have therefore decided to treat this taxon as a subspecies of S. microsperma rather than recognizing it as a species.