5.6. Tulipa dasystemon (Regel) Regel in Trudy Imp. S. -Peterburgsk. Bot. Sada 6: 507 (1879).

Type:— KAZAKHSTAN. In montibus prope Wernoje ad fluvium Almatinka, A. Regel (holotype LE!; isotype PRC-454341).

Description:—Bulb ovoid, 1.0– 1.5 cm thick; tunic light-brown or brown, papery, glabrous or with few adpressed hairs at the apex; stem 10–20 cm long, the stem and peduncle glabrous; leaves 2, quite upright, more or less scattered, glabrous, smooth or rarely slightly ciliate-margined, linear; lower leaf broader, 5–15 mm broad; flower solitary, opens to a wide yellow star without blotch; perigone segments 15–30 mm long, acute; outer segments lanceolate, dingy violet outside, glabrous, about half as broad as the inner; inner segments, rather gradually tapering into a long claw, bearded and ciliate at base; stamens half the length of perigone; filaments yellow or orange, hairy at base; anthers yellow or pale yellow, oblong, 3–5 mm long, with a very short cusp; ovary scarcely shorter than stamens, with a rather long style; capsule long, obovoid, 0.7–1.0 cm broad, 1.5–2.5 cm long, with a beak ca. 5 mm long.

General distribution:—Tian-Shan, Pamir-Alay (northern part of China), Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan).

Distribution in Uzbekistan:—I-1 Western Tian-Shan district (I-1-a Ugam-Pskem region; I-1-b Western Chatkal region; I-1-c Arashan region; I-1-d Kurama region; I-1-e Chorkesar region), I-3 Fergana-Alay district (I-3-b Eastern Alay region), I-5 Kuhistan district (I-1-a North Turkestan region), I-6 Western Hissar district (I-6-a Kashkadarya region).

Phenology:—Flowering: May–July; fruiting: July–August (depending on elevation).

Ecology:—Fine earth, gravelly and stony slopes, in middle and upper mountain zone, 1500–3500 m a.s.l.

Etymology:—Species epithet “ dasystemon ” means “hairy stamen”.

Note:— Tulipa dasystemon has long and narrow style, which is the reason Regel (1879) originally placed it in T. sect. Orithyia .

Specimens examined:— UZBEKISTAN: Western Tian-Shan district, Ugam-Pskem region, surroundings of Khumsan, Mts. Karzhantau, screes near snow, 27 July 1921, Simonova 270 (TASH!) ; Syr-Darya Province, Tashkent district, the pass in the valley of Pskem on the way to the lake Makhbalkul, 22 June 1921, Baranov 301 (TASH!) ; Bostandyk, the crest of Ugam Range in the upper reaches of the gorge Satylsay, near melting snow on the north slopes, 3000 m, 18 July 1954, Pavlov 174 (MW) ; basin of the river Novalisay, middle reaches, rocks, 14 June 2006, Tojibaev s.n. (TASH!) ; Maydantal Range, Bostandyk district of Tashkent Province, middle reaches of the river Oygaing, upper part of the gorge Tekesh, near melting snow, 3000 m, 23 August 1958, Pavlov 180 (TASH!) ; Tashkent Province, Bostandyk district, Pskem Range, the gorge Bas-Kapchigaysay, on the scree, 1400 m, 12 May 1958, Pavlov 88 (MW) ; Bostandyk district of Tashkent Province, upper part of the gorge Barkraksay (valley of the river Oygaing), 3300 m, 10 August 1959, Pavlov 76 (MW) ; valley of the river Oygaing, 1941, Momotov s.n. (TASH!) ; valley of the river Oygaing, right bank of the river Koksu, stony slope, 3 June 1963, Puchkova 41 (TASH!) ; valley of the river Oygaing, nameless valley between rivers Koksu and Barkraksay, NE slope, 4 June 1963, Puchkova 85 (TASH!) ; Western Chatkal region, Chatkal Range, Mt. Chimgan in Tashkent Alatau, on the left side of Chirchik, 21 June 1881, Regel s.n. (LE) ; surroundings of the Chimgan Botanical Station, ridge of Mt. Greater Chimgan, 10 august 1926, Baranov, Raykova s.n. (TASH!) ; surroundings of the Chimgan Botanical Station, Mt. Greater Chimgan, NE slopes, 2600 m, 26 June 1927, Gomolitsky 467 (TASH!) ; Mt. Greater Chimgan, gravelly-stony slope near the pass Melovoy ( Chalky), 19 May 1929, Gomolitsky 181 (TASH!) ; Greater Chimgan, 22 July 1936, Korotkova, Titov 1638 (TASH!) ; Tashkent Alatau, valley of the river Kyzylsay, near melting snow at the source of Sukoksay, 31 May 1939, Butkov 15 (TASH!) ; valley of the river Kyzylsay, gravelly slopes, on the watershed between Sukoksay and Kyzylsay, 31 May 1939, Butkov 40 (TASH!) ; Tashkent Alatau, Mt. Kyzyl-Nura, on the top, 9 August 1953, Maylun, Nabiev 1164 (TASH!) ; NE slopes of Greater Chimgan, 12 July 1956, Zuckerwanik 949 (TASH!) ; Chimgan, north-east slopes, Greater Chimgan, 12 July 1956, Granitov 951 (TASH!) ; upper reaches of the river Akbulaksay, upper reaches of Nayzasay, 3000 m, 24 July 1959, Petrov s.n. (TASH!) ; Greater Chimgan, near melting snow, 15 May 1967, Sharipov s.n. (TASH!) ; Chatkal Biosphere Reserve, Bashkyzylsay plot, Kurgantash, 26 July 2002, Tojibaev s.n. (TASH!) ; Arashan region, Chatkal Range, basin of the river Angren, near the pass Arashan, 2 September 1932, Pjataeva, Momotov 1532 (TASH!) ; upper reaches of the river Angren, the pass Arashan, 3 August 1938, Pjataeva, Momotov s.n. (TASH!) ; Angren Plateau, upper reaches of the river Arashan, NE slopes, 20 August 1939, Kudrjashev 1303 (TASH!) ; upper reaches of the river Angren, near upper lake Arashan, among rocks, 7 July 1954, Butkov, Maylun 401 (TASH!) ; lake Arashan, slopes about 100 m above the lake, 11 July 1959, Petrov s.n. (TASH!) ; Angren Plateau, southern slope of Chatkal Range, near the pass Arashan, 3400 m, 17 July 2019, Tojibaev, Beshko s.n. (TASH!) ; Kurama Range, the pass Kamchik, stony slopes above the pass, on the way to the Angren Plateau, 3000 m, 15 May 1965, Pavlov 126 (MW) ; Angren Plateau, river Irisu, 2800 m, 1977, Kari s.n. (TASH!) ; Kurama region, Kurama Range, mountains Kurama, valley of the river Angren, ravine Sovuksay near the village Yangavat, 15 August 1928, Gomolitsky, Granitov 325 (TASH!) ; basin of the river Angren, the pass Abjas, on the top in the upper reaches of Chukursay, 29 May 1954, Butkov 63 (TASH!) ; basin of the river Angren, left bank, the pass Karamazar, 29 May 1954, Vernik, Nabiev 208 (TASH!) ; basin of the river Angren, Kurama Range, upper reaches of the Kashkasay, on the stony soil, 3 June 1954, Vernik, Nabiev 295 (TASH!) ; upper reaches of Abjassay, subalpine belt, 2500 m, 21 May 1981, Shermatov, Kazakbaev, Levichev, Tagaev 91 (TASH!) ; Chorkesar region, Kurama Range, Pap district, Sasyvarsay, 23 June 1949, Bondarenko 337 (TASH!) ; Fergana-Alay district, Eastern Alay region, Alay Range, basin of the river Shakhimardan, surroundings of the village Iordan, the left bank of the river Dugoba, juniper forest, 5 July 1961, Pjataeva s.n. (TASH!) . Kuhistan district, North Turkestan region, Turkestan Range, pass Guralash, 22 July 1931, Agababyan 1481 (TASH!) ; basin of the river Sanzar, Zaamin forestry, upper reaches of the river Kok-Dzhar, stony slopes, 14 July 1934, Gomolitsky, Protopopov 168 (TASH!) ; basin of the river Guralash, Mechetlisay, 27 July 1934, Zakrzhevsky 475 (TASH!) ; basin of the river Guralash, the pass Angyrlysay, near the watershed crest, 25 May 1935, Zakrzhevsky 151 (TASH!) ; Zaamin district, valley of the river Guralashsay, tract Kyrk-Dzhigittash-uygan, near melting snow, 1550 m, 29 May 1935, Zakrzhevsky s.n. (TASH!) ; basin of the river Zaaminsu, valley of the river Kulsay, the gorge Chor-Tanga, 29 May 1935, Zakrzhevsky 185 (TASH!) ; basin of the river Guralash, the tract Kyrk-Dzhigit, subalpine belt, 2700 m, near melting snow, 30 May 1935, Zakrzhevsky s.n. (TASH!) ; basin of the river Guralash, the pass to the Zeravshan Valley, on the way to the village Urmitan, 18 June 1935, Zakrzhevsky 460 (TASH!) ; upper reaches of Sanzar, Guralash Nature Reserve, on the watershed between Kulsay and Guralash, 12 June 1937, Korotkova, Vasilkovskaya 309 (TASH!) ; upper reaches of Sanzar, Guralash Nature Reserve, near a pass on the unfixed scree, 13 July 1937, Korotkova, Vasilkovskaya 318 (TASH!) ; Guralashsay, 3 km to the west of the peak of 2603 m, 28 August 1937, Demurina 1422 (TASH!) ; upper reaches of the river Sanzar, Guralash Nature Reserve, 12 May 1938, Korotkova 19 (TASH!) ; upper reaches of the river Sanzar, Guralash Nature Reserve, below the pass Guralash, 2200 m, 4 June 1938, Korotkova 71 (TASH!) ; Zaamin, Kulsay, 5 May 1938, Shcheglov s.n. (TASH!) ; Guralash Nature Reserve, lower part of Tuyatashsay, on gravelly soil, in juniper forest, 23 May 1944, Nazarenko s.n. (TASH!) ; Guralash Nature Reserve, middle reaches of the river Guralash, banks of the stream, 12 July 1945, Pazij 22764 (TASH!) ; Zaamin district, Kulsay, 1955, Karpenko s.n. (TASH!) ; Western Hissar district, Kashkadarya region, Hissar Range (mountains to the east of Yakkabag, a plateau on the top of mountains, south of the village Vardan, 4 June 1927, Kultiasow, Granitov 958 (TASH!); basin of the river Kashkadarya, valley of the river Aksu, Mt. Karatag, 5 km to the south-east of the village Kyzyl-Imchak, on the northern stony slopes, 15 July 1959, Li, Zakirov 827 (TASH!).