Poa bactriana subsp. glabriflora Tzvelev

2.2Poa bactriana subsp. glabriflora(Roshev. [1923]) Tzvelev, Novosti Sist. Vyssh. Rast. 10: 96. 1973. ≡ Poa bulbosa var. glabriflora Roshev., Trudy Glavn. Bot. Sada 38: 54. 1923. Type protologue. Fergansk. y Samarkand. Oblast, Pamir and Buchara. Type specimen. “ Poa bulbosa var. elanata (Stapf) Hack. ” “ Herb. Petrop. ” (= LE, presumably lost or destroyed; neotype cited below). Note. A brief description in Russian was included. The only specimen cited by Roshevitz (1923) has nothing to do with the validation of the 1923 name (fide K. N. Gandhi pers. comm.), as the author was citing a specimen not a synonym. This specimen would be the Type of the new variety glabriflora, but it has not been found. Stapf [1896 (‘ 1897 ')], not Hackel, published P. bulbosa var. elanata, and the original material for that name is at K (lectotyped under P. bulbosa var. vivipara). The name Poa bulbosa var. glabriflora Roshev. (Roshevitz in Fl. Turkmenii 1 (2): p. 143. 1932), cited by Ovczinnikov (1933) as the basis of the species name, has no nomenclatural standing, it does not exist except as a secondary usage of the 1923 name. No specimen or place was cited by Roshevitz in 1932, the distribution was repeated from the 1923 publication, but not the specimen cited originally. = Poa glabriflora (Roshev.) Roshev. ex Ovcz., Izv. Tadzh. Bazy Akad. Nauk. SSSR 1 (1): 10, 14. 1933. Note. Ovczinnikov cited P. bulbosa var. glabriflora Roshev. Fl. Turkmenii 1–2 p. 143. 1932. However, the effective basionym is P. bulbosa var. glabriflora Roshev., Trudy Glavn. Bot. Sada 38: 54. 1923. Ovczinnikov (1933) described it in his key (p. 10). Eleven specimens were cited: V. I. Lipsky s. n., s. n., 4754, 4818, 4227, 4826; Minkwitz 1061, and s. n. in 19 Jun 1899; Nikitin 1012 (also cited for fo. albida); Komarov, 30 Jun 1892; Ovczinnikov in 23 Sep 1932. In 1931 Roshevitz annotated several of these specimens at LE as P. glabriflora Roshev. Ovczinnikov listed only Tajik collections. For this reason, the two Desyatova 1398 duplicates at LE (identified by Tzvelev, 1976 as the Type and isotype), collected in Uzbekistan, and annotated as “ Typus! ” by Roshevitz in 1931 ”, were not listed. However, the effective Type, if found, would be the LE specimen cited by Roshevitz in 1923. = Poa glabriflora Roshev., in Komarov. (ed.) Fl. SSSR. 2: 376–377, Tab. 28, f. 4. 1934. nom. illeg. hom. Note. Roshevitz (1934) cited no specimen, provided a full Russian description, and cited Poa glabriflora Roshev. Acta. Inst. Bot. Acad. Sci. ser. 1. II. “ 1934 ” (without page number) as the place of publication, but that was not issued until 1936). Poa glabriflora Roshev., Acta Inst. Bot. Acad. Sci. URSS, ser. 1, fasc. II: 99. 1934 [1936], is an isonym of P. glabriflora Roshev, 1934. This was proposed as a new species with full Latin description but published after the name was validated. Five specimens were cited including Desyatova 1398 (treated as LE Type and isotype by Tzvelev 1976, p. 450), and Minkwitz 1353 LE 01223926 [image!, and MVO glabriflora 4. jpg], 1398, 2009, 2068. = Poa glabriflora fo. sericea Ovcz., Izv. Tadzh. Bazy Akad. Nauk. SSSR 1 (1): 14. 1933. Type specimen. Tajikistan, Schugnan, in valle fl. Gandarar, 5 Jun 1914, N. N. Tuturin et P. L. Bessedin 155. (lectotype, here designated: LE [LE 01223925; rjs IMG _ 1982. jpg; MVO glabriflora 7. jpg]). Note. There is one remaining syntype: Tajikistan, Pamir, Lac. Jaschil-kul, Fl. Gunt., in declivis lipidosis, 24 Jun 1913, D. D. Bukinitsch 219 LE [LE 01223928] [image!, and MVO glabriflora 3. jpg]. Type. Uzbekistan • Iter. ad distr. Margelan {Fergana Region}, Alai valley: Valley of Dara Rv., from Izmail burial ground to Aran-Kungei winter quarters, soft hillocks, 25 Jun 1913, N. Desyatova [1398] [AKA N. Dessinatoff]. (neotype, designated by Tzvelev 1976, p. 450, as “ lectotype ”: LE LE 01223931 [rjs IMG _ 1981. jpg, and MVO glabriflora. jpg]; isoneotype: LE LE 01223929 [image!, and MVO glabriflora 2. jpg]). Description. Perennials; hermaphroditic; basal tufts dense, without rhizomes or stolons; tillers intravaginal; prophylls up to 2 cm long, rudimentary or elongated sometimes exerted from basal sheaths, keels antrorsely scabrous; bulbs present. Culms (10 –) 20–40 cm tall, erect, well exerted, terete, internodes smooth, smooth glabrous, 0–1 (– 2) nodes exerted. Leaves mostly basal, few on culms; ligules of upper culm leaves to 3.5 mm long; blades of the culm 1–1.5 mm wide, folded, more or less scabrous; flag-leaf blades 1.5–5 cm long, sterile shoot blades <5 cm long, slender, setaceous with in-rolled margins, fairly soft to somewhat firm. Panicles 2–10 cm long, erect, lanceoloid, compact (open in anthesis), dense to moderately crowded, with 30–80 spikelets; primary branches longest to 1 cm, erect to ascending, sparsely to moderately scabrous. Spikelets 3–6 mm long, ovate, compact, laterally compressed, usually pale green or with a slight violaceous tinge; bulbifery present or absent; florets 4–8; glumes narrowly lanceolate, somewhat unequal; callus glabrous; lemmas 2–2.7 mm long, pale green, or slightly violaceous in part, keel and marginal veins, smooth or distally scaberulous, glabrous (rarely with a few hairs in Turkey), between veins smooth, glabrous, intermediate veins faint to obscure or absent. Flowers bisexual; anthers 0.8–1.5 mm long. Clade code: Aa. Distribution and ecology. Afghanistan, northwestern India, Iran, Pakistan, Tajikistan, and Uzbekistan. Loose sandy to clayey, sometimes stony soils on middle to upper mountain slopes. Conservation status. None. Comments. Kavousi et al. (2015) recognized only P. bactriana subsp. glabriflora in Iran (fig. 4 map and specimen photo), citing 10 and mapping 11 collections from across the north and east. The voucher was not cited for one mapped point in Kavousi et al. (2015) from the Turkey – Iran border near Mt. Ararat. We agree that subsp. glabriflora is generally distinct from subsp. bactriana. However, Kavousi et al. ’ s description does not allow us to distinguish subsp. glabriflora from subsp. drobovii in Iran. Bor (1970) cited Gauba 1660 as P. glabriflora from Persia, and we have verified and sequenced DNA from that collection. The typification of the name is somewhat confusing in the literature. Roshevitz (1923) published P. bulbosa var. glabriflora, giving a brief description and citing a specimen at LE labeled “ Poa bulbosa var. elanata (Stapf) Hack ”. The single original specimen cited by Roshevitz (1923) has not been found. Tzvelev (1976, p. 450) cited a Desyatova collection at LE as the “ lectotype ” and two “ isotypes ” of P. glabriflora Roshev. ex Ovcz., but did not cite the earlier publication of P. bulbosa var. glabriflora Roshev. (1923), or Roshevitz’s, 1932, secondary usage cited by Ovczinnikov (1933). Since Tzvelev (1976) typified the species name with a non-original element, his usage of the term “ lectotype ” is accepted as a neotype (see Shenzhen Code Art. 9.10). Tzvelev also noted that subspecies glabriflora was often bulbiferous, but he did not name that form (he assigned var. vivipara to subsp. bactriana). He keyed out plants of this subspecies as shorter (10–40 cm) than the typical subspecies (20–60 cm), with lemmas 2–2.7 mm long (vs. 2.7–3.2 mm). Bor (1970) keyed and described P. glabriflora apart from P. bactriana as having lemmas with short ciliolate keels, which is contrary to the specimens he cited and other literature, where both taxa are keyed as glabrous. Until additional material can be studied, we retain it here as a subspecies. The lectotype Tzvelev suggested was at TAD of P. zaprjagajevii has not been found, but the syntype, “ Zaprjagajev 202 ”, was examined by RJS at LE (rjs img _ 2013), and it agrees with subsp. glabriflora., as does Roshevitz’ (1934) description and tab. XXVIII fig. 7, a, b. Subspecies glabriflora can be confused with P. densa, but its basal tuft of leaves is longer and laxer, and the ligules are longer. Leaves of Gauba 1660 (IRAN-21237), a normal-flowered specimen, were provided to Neda Amiri for DNA study in 2011. The specimen cited below from India is likely original material of Poa bulbosa var. elanata Stapf. Representative specimens. Turkey. Bitlis (Süphan Dağ, Behçet B- 1440 VANF 119075). Trabzon (Okatan ISTE 47928, 47929). Van (Süphan Dağ, Behçet s. n. VANF 163109; Ünal M 2863 VANF 3998; Karabalak OK 3301 VANF 16069). Afghanistan. (Herat, Koie 4247 K). India. (Zanskar, Umasi P., 20 Jun 1848, Thompson s. n. BM, K, P). Iran. Prov. Kazvin (Kuh-e Dasht (Dashte) prope Keredj, Gauba 1600 IRAN 21237 *, US-04073194). Prov. Kerman (H. S. Gentry 14810 US; H. S. Gentry 14812 US – a bulbiferous form). Prov. Khuzenstan (Archibald 2962 E [image!], K [image!]; Hewer H 3843 E [image!]). Pakistan. (Rechinger 29117 US; Bowes Lynn 723 BM, E [images!]).