Euphorbiaceae



Euphorbia cheiradenia
BOISS. ET HOHEN.
Euphorbia cheiradenia
BOISS. ET HOHEN.

Euphorbia L.
Euphorbia cheiradenia BOISS. ET HOHEN.
Ömür: Çok yıllık
Yapı: ot
Hayat formu:
İlk çiçeklenme zamanı: 4
Son çiçeklenme zamanı: 8
Habitat: kayalık alanlar, aşınmış kunlu ve marllı yamaçlar, Quercus çalılığı, Artemisia stebı
Minimum yükseklik: 1000
Maksimum yükseklik: 2900
Endemik: -
Element: İran-Turan
Türkiye dağılımı: D. Anadolu
Genel dağılımı: GB. Asya, B. Suriye, Afganistan
Bulunduğu iller
Bulunduğu kareler : A6 A8 B6 B7 B8 B9 B10 C7 C8

 
E. cheiradenia Boiss. & Hohen. in Boiss., Diagn. ser. 1(12): 112 (1853). Syn: E. schizadenia Boiss. & Hohen. in Boiss., op. cit. 113 (1853) pro syn.! E. bothriosperma Boiss. & Kotschy ex Boiss., Cent. Euphorb. 36 (1860)! Ic: Mouterde, Nouv. Fl. Lib. Syr. 2: t. 209 f. 2 (1970); Fl. Pal. 2: t. 419 (1972). Figure 17.
Glabrous, rarely pubescent somewhat glaucous perennial. Stems several, to 40 cm, arising from a woody stock. Cauline leaves oblanceolate to elliptic-oblong or elliptic-ovate, (10-)l 5-32 x 2-12(-16) mm, apex obtuse or sub-acute, sometimes mucronulate, margin ± entire. Ray-leaves ovate, ovate-rhombic or suborbicular. Raylet-leaves yellow at first, later becoming green and sometimes pinkish-tinged, transversely ovate to ovate-deltoid or reniform, 5-10 x 7-20 mm, apex obtuse or rounded, mucronate, base ± truncate. Rays 3-6, not or once dichotomous; axillary rays 0-2. Glands usually 2- or more-horned or pectinate, horns often lobate. Cyathial lobes glabrous outside, ciliate. Fruit ovoid-conical, 3-4 mm diam., smooth, glabrous. Seeds compress-ed ovoid-ellipsoid, 3 mm, irregularly deeply pitted, pale grey; caruncle large, terminal, 1.5 mm. Fl. 4-8. Rocky places, eroded sandy and marly slopes, Quercus scrub, Artemisia steppe, pastures, corn and fallow fields, 1000-2900 m.
Syntypes: [N. Iran] in monte Elbrus Persiae borealis prope Passgala, [21 v 1843], Kotschy 182 (BM! G! K!); [Turkey C7 Urfa] in Mesopotamia circa Diarbekir [Karaca Da., vi 1841], Kotschy 232 (BM! G! K! W!).
Mainly E. Anatolia. A6 Sivas: Yildiz Da., 1200 m, Bornm. 1890:2513! A8 Erzurum: Aras river gorge, 1700 m, Tobey 2104! B6 Malatya: Hekimhan, 1300 m, Stn. & Hend. 5370! B7 Erzincan: Egin (Kemaliye), Sint. 1890:2229!
B8 Siirt: W. of Sason, 1000-1500 m, Watson et al. 1210! B9 Van: d. Başkale, Ispiriz Da., 2700 m, D. 23670! B10 Kars: 20 km from Iğdir to Doğubayazit, 1600 m, D. 43871! C7 Adiyaman: Nemrut Da., 1600-2250 m, Hand.-Mazz. 2109! C8 Mardin: Mardin castle, 1200 m, D. 28348!
S.W. Asia from W. Syria to Afghanistan. Ir.-Tur. element. A specimen from B7 Tunceli (Pülümur, 1700 m, M. & D. Zohary 3020!) is the only pubescent example of this usually quite glabrous species which I have seen. The pubescence is confined to the lower part of the main stem; the cauline leaves are minutely papillose.
Mouterde (Nouv. Fl. Lib. Syr. 2:493, 1970) states that the related E. chaborasia Gombault (Syn: E. mesopotamica M.S. Khan), a species from Syria and Iraq, occurs in Turkey 'towards Diarbekir', as var. nazalena Mouterde; however, I have seen no specimen. Another allied species, E. cuspidata Bertol. (Syn: E. chesneyi Boiss.), from Syrian Desert, which, however, has ± smooth seeds, might also be expected to occur in Turkish Mesopotamia.