Striga barthlottii, a species of the broomrape family (Orobanchaceae) endemic to Morocco and parasitising exclusively on succulent Euphorbia species, is described as new to science and compared with the widespread, polymorphic S. gesnerioides, for which it was previously mistaken.
References
C. I. Botanga
&
M. P. Timko
2005: Genetic structure and analysis of host and nonhost interactions of Striga gesnerioides (witchweed) from Central Florida. — Phytopathology 95: 1166–1173. Google Scholar
S. Carter
2004: Euphorbias of southern Morocco. — Cact. Succ. J. (Los Angeles) 77: 34–37. Google Scholar
C. W. dePamphilis
,
N. D. Young
&
A. D. Wolfe
1997: Evolution of plastid gene rps2 in a lineage of hemiparasitic and holoparasitic plants: Many losses of photosynthesis and complex patterns of rate variation. — Proc. Natl. Acad. Sci. USA 94: 7367–7372. Google Scholar
M. Fennane
2007:
Euphorbiaceae. — Pp. 208–235 in:
M. Fennane
,
M. Ibn Tattou
,
A. Ouyahya
&
J. El Qualidi
, Flore pratique du Maroc 2. — Trav. Inst. Sci. Univ. Mohamed V, Sér. Bot. 38. Google Scholar
R. Govaerts
,
D. G. Frodin
&
A. Radcliffe-Smith
2000: World checklist and bibliography of Euphorbiaceae 2. — Kew: Royal Botanic Gardens. Google Scholar
J. M. Hibberd
,
W. P. Quick
,
M. C. Press
&
J. D. Scholes
1996: The influence of the parasitic angiosperm Striga gesnerioides on growth and photosynthesis of its host, Vigna unguiculata. — J. Exp. Bot. 47: 507–512. Google Scholar
M. Ibn Tattou
2007:
Striga. — P. 549 in:
M. Fennane
,
M. Ibn Tattou
,
A. Ouyahya
&
J. El Qualidi
, Flore pratique du Maroc 2. — Trav. Inst. Sci. Univ. Mohamed V, Sér. Bot. 38. Google Scholar
H. N. Le Houérou
2001: Biogeography of the arid steppeland north of the Sahara. — J. Arid Environm. 48: 103–128. Google Scholar
F. Médail
&
P. Quézel
1999: The phytogeographical significance of SW Morocco compared to the Canary Islands. — Pl. Ecol. 140: 221–244. Google Scholar
K. L Mohamed
,
L. J. Musselman
&
C. R. Riches
2001: The genus Striga (Scrophulariaceae) in Africa. — Ann. Missouri Bot. Gard. 88: 60–103. Google Scholar
L. J. Musselman
&
F. N. Hepper
1986: The witchweeds (Striga) of the Sudan. — Kew Bull. 41: 205–221. Google Scholar
L. J. Musselman
&
F. N. Hepper
1988: Studies in the Flora of Arabia XX: The genus Striga in Arabia. — Notes Roy. Bot. Gard. Edinburgh 45: 43–50. Google Scholar
L. J. Musselman
&
C. Parker
1981: Studies on indigo witchweed, the American strain of Striga gesnerioides (Scrophulariaceae). — Weed Sci. 29: 594–596. Google Scholar
B. Thiers
2008+ [continuously updated]: Index herbariorum: a global directory of public herbaria and associated staff. — New York Botanical Garden:
http://sweetgum.nybg.org/ih/
. Google Scholar
F. White
1983: The vegetation of Africa: a descriptive memoir to accompany the Unesco/AETFAT/UNSO vegetation map of Africa. — Paris: Unesco. Google Scholar