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Pakistan | Family List | Cuscutaceae | Cuscuta

8. Cuscuta epithymum (L.) L., Fl. Monsp. 11. 1756. et Amoen. Acad. 4: 478. 1759; Reich., Icon. Bot. Pl. Crit. Pl. 499. 1827; Reich. & Reich. f., Icon., Fl. Germ. 18: pl. 1344. f. 3. 1858; Engelm., l.c. 1: 461. 1859; Yuncker, Ill. Biol. Monogr. 6:112. f. 2. 86. 145. 1921; in Mem. Torr. Bot. Club. 18(2): 283. 1932; in Rech. f., l.c. 11. 1964; Stewart, l.c. 579; Tutin et al., Fl. Europ. 3:77. 1972; Shishkin, Fl. URSS (English translation); 19: 45. 1974; Plitm. in Davis, Fl. Turk. 6:231. 1978.


  • Cuscuta europaea var. epithymum L.

    Stem thin, purple, not interlaced, making a few spirals around the host stem. Leaves fleshy, oblong, acute-obtuse, slightly purple to brown, inflexed, c. 1 x c. 0.4 mm. Flowers in clusters of 4-5, sessile or subsessile, 22-25 mm. Bracts leaf-like. Calyx lobes 4, 1.8-2 x 1-1.5 mm, glossy, fleshy, elliptical to spathulate, with a prominent reticulate pattern, mostly obtuse or acute-obtuse, tips glandular, tube 1-12 mm long. Petals 1.8-2 x 1-12 mm, 4, broadly elliptical, membranous, with reticulate pattern, acute-obtuse or obtuse; tube c. 1 mm long; scales very thin, membranous, hard to see, fringed, c. 0.3 mm long. Stamens 4, sessile, free filaments obsolete, fused filaments prominent in the petals; anther oblong-elliptical, basifixed, light-brown, to dark-brown, c. 0.3 x c. 0.4 mm. Ovary globular, not depressed, fleshy, brown, with thick base, 2.5-3 x c. 0.4 mm, style linear, narrowing towards the apex, brown, 2.5-3 mm long; stigma linear, dark brown, c. 0.2 mm long; ovules 4, orbicular, light brown to yellow, c. 0.2 mm in diameter. Fruit not seen.

    Type: Described from Europe, Herb. Linn. 170/4 (LINN).

    Distribution: Throughout the range of the genus.

    Host: Convolvulus spinouts.

    This species is close to Cuscuta europaea, from which it is differentiated by having purple stems, sessile stamens and sepal lobes with reticulate venation and style 2.5-3 mm long. Different forms of this species described by Yuncker are not recognized here both because only a limited number of collections are available, and the characters used by Yuncker for the separation of different forms intergrade.


    Related Objects  
  • Illustration (M. Rafiq)
  • Illustration

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