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    A new species of Bellardiochloa, B-doganiana (Poaceae), from the Taurus Mountains of Turkey
    (Magnolia Press, 2015) Cabi, Evren; Soreng, Robert John; Cingay, Burçin; Karabacak, Ersin
    Bellardiochloa doganiana, a new species from the Taurus Mountains of Turkey, is described and illustrated. It differs from the other four species of the genus in its basal tuft of short, stiff, terete, arched, pungent-tipped basal leaf-blades, conical panicles with numerous panicle branches and mostly 1 or 2 spikelets per branch, and pedicels as long as or longer than the spikelets.
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    Alopecurus goekyigitiana (Poaceae, subtribe Alopecurinae sensu stricto), a new species from Turkey based on morphological and molecular investigation
    (Tubitak Scientific & Technical Research Council Turkey, 2017) Cabi, Evren; Soreng, Robert John; Gillespie, Lynn Judith; Boudko, Ekaterina
    Alopecurus goekyigitiana, a new species from the Taurus Mountains of Turkey, is described and illustrated. Phylogenetic analyses of DNA sequence data support its relationship within Alopecurus sect. Colobachne with A. gerardi (plastid), or with the complex of A. davisii, A. lanatus, and A. vaginatus (nuclear ribosomal spacers). The new species differs from the above taxa by various combinations of characters, in having slender rhizomes and a mat-forming habit, indumentum of lower sheaths sparsely sericeous, glabrescent, culm leaf blades absent or vestigial, basal blades filiform, a dorsal awn on the lemma that is vestigial or up to 2 mm long, erect (not geniculate), and the palea absent. Notes on its ecology and conservation status are presented. A distribution map for the new species and its closest allies in Turkey is provided.
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    Biogeography, timing, and life-history traits in the PPAM clade: Coleanthinae (syn. Puccinelliinae), Poinae, Alopecurinae superclade, Miliinae, and Avenulinae and Phleinae (Poaceae, Pooideae, Poeae)
    (Wiley, 2022) Soreng, Robert John; Gillespie, Lynn Judith; Boudko, Ekaterina A.; Cabi, Evren
    We conducted a biogeographic analysis of the PPAM clade of Poeae Plastid DNA Group 2, which includes 12 subtribes of C-3 grasses. One hundred and eighty-four species sampled represent 42 of 43 accepted genera and taxonomic diversity in large genera. We analyzed plastid sequences of matK, trnC-rpoB, and trnT-trnL-trnF using BEAST to produce a dated tree and MrBayes to produce a Bayesian tree, on which we ran Bayesian-Binary-Markov-Chain analyses on a worldwide biogeographic data set of 12 areas. PPAM split in southwestern Asia into subtribe Coleanthinae and PAM clades in the Early Miocene. PAM diversified rapidly in the Middle Miocene in southwestern Asia into four monogeneric lineages, Avenulinae, Phleinae, Miliinae, Poinae, and the Alopecurinae superclade (seven subtribes with 27 genera). In the Late Miocene, Pliocene, and mostly Pleistocene, the latter four lineages diversified and dispersed across Eurasia and established in North America. Dispersals to the southern hemisphere occurred in the Pliocene and Pleistocene. Annuals occur in 15 Mediterranean and southwestern Asia genera, but in few genera in other regions. Beyond phylogenetically isolated annual species dating to the Miocene, all other annuals evolved in the Pliocene and Pleistocene. Cold tolerance is high among perennial species, many occurring in the alpine, nine genera ranging into the Arctic. We suggest that alpine and subalpine habitats were ancestral. High tolerance of saline and alkaline conditions arose between the Pliocene and Pleistocene in Coleanthinae, Alopecurinae, Poinae, Hookerochloinae, Beckmanniinae, and Arctopoa. Combinations are proposed for Cornucopiae alopecuroides in Alopecurus and for Paracolpodium colchicum in Hyalopodium. A nothogenus x Catanellia is proposed for Catabrosa x Puccinellia.
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    Phylogeny and taxonomic synopsis of Poa subgenus Pseudopoa (including Eremopoa and Lindbergella) (Poaceae, Poeae, Poinae)
    (Pensoft Publishers, 2018) Gillespie, L.J.; Soreng, Robert John; Cabi, Evren; Amiri, N.
    Eremopoa is a small genus of annual grasses distributed from Egypt to western China. Phylogenetic analyses of plastid and nuclear ribosomal DNA show that Eremopoa species, together with the monotypic genus Lindbergella and a single species of Poa (P. speluncarum), are nested within the genus Poa, in a clade that we accept as Poa subg. Pseudopoa. Here we accept seven species, four subspecies and four varieties in Poa subg. Pseudopoa. Five new combinations are made: Poa attalica, P. diaphora var. alpina, P. diaphora var. songarica, P. nephelochloides and P. persica subsp. multiradiata; P. millii is proposed as a replacement name for E. capillaris; and Poa sections Lindbergella and Speluncarae are proposed. We provide a diagnosis for Poa subg. Pseudopoa, synonymy for and a key to the taxa. Eight lectotypes are designated: Eragrostis barbeyi Post, Eremopoa nephelochloides Roshev., Glyceria taurica Steud., Nephelochloa tripolitana Boiss. & Blanche, Poa cilicensis Hance, Poa paradoxa Kar. & Kir., Poa persica var. alpina Boiss and Poa persica subsp. cypria Sam. Eremopoa medica is re-identified as a species of Puccinellia. © Lynn J. Gillespie et al.
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    Poa densa (Poaceae), an overlooked Turkish steppe grass, and the evolution of bulbs in Poa
    (Botanischer Garten & Botanische Museum Berlin-Dahlem, 2016) Cabi, Evren; Soreng, Robert John; Gillespie, Lynn Judith; Amiri, Neda
    Poa densa Troitsky is a characteristic species of the high steppe to low alpine vegetation of Turkey. It was overlooked in the Flora of Turkey, and although subsequently reported from a few stations in W part of C Anatolia, is actually relatively common and widespread across the semi-arid C and N steppes. Here we provide a key to related species, a full description, photographs, 2C value of nuclear DNA content, and a distribution map, and discuss its classification in the genus. The synonym Festuca conferta is lectotypified. DNA phylogenetic analysis and morphology data indicate P. densa is allied to species of P. subg. Poa sect. Macropoa, rather than to the P. bulbosa complex of P. subg. Ochlopoa sect. Arenariae, and support multiple origins of the basal bulb in the genus Poa.
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    Taxonomy of Poa jubata and a new section of the genus (Poaceae)
    (Tubitak Scientific & Technical Research Council Turkey, 2017) Cabi, Evren; Soreng, Robert John; Gillespie, Lynn Judith
    Poa jubata A. Kern. is an ephemeral, southeastern European species of which little is known. A molecular phylogenetic analysis of Poa L., including all previously identified major lineages, shows this species to be isolated, with a genotype here designated as J (plastid) J (nrDNA). It is assigned to the monotypic P. sect. Jubatae sect. nov. The section is differentiated from other Poa sections in having 5-nerved upper glumes, very narrow palea flanges, an annual habit, and erect solitary culms. Poa jubata occurs along coastal regions of the Balkans and is rather rare. Two new collections were made in 2015 in Thrace, Turkey, in vernal pool habitats with clay soils, thus expanding its known habitat. The species is described in detail and illustrated, and its relationships are discussed.
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    Two new records and one confirmation of the genus Poa L. (Poaceae) for the Flora of Turkey
    (Tubitak Scientific & Technical Research Council Turkey, 2016) Cabi, Evren; Soreng, Robert John
    The ongoing revision of the genus Poa in Turkey has resulted in two new Poa records for the Flora of Turkey as Poa pratensis subsp. irrigata (Lindm.) H. Lindb. and Poa eigii Feinbrun. In addition, the presence of Poa palustris L. is confirmed. A brief discussion and an illustration for each taxon are provided.