A new species of Arceuthobium (Viscaceae) from central Mexico
Tóm tắt
Arceuthobium pendens, a parasite of the pinyonsPinus discolor andP. cembroides, is described from San Luis Potosí and Veracruz, Mexico. This andA. divaricatum Engelm. are the only dwarf mistletoes known to parasitize pinyons.Arceuthobium pendens is distinct fromA. divaricatum Engelm. in its long, slender, greenish shoots, formation of systemic witches brooms, and frequency on various species of pinyons. With the discovery of this new species, 19 dwarf mistletoes are known from Mexico.
Tài liệu tham khảo
Bailey, D. K. & F. G. Hawksworth. 1979. Pinyons of the Chihuahuan Desert area. Phytologia 44: 129–133.
Crawford, D. J. & F. G. Hawksworth. 1979. Flavonoid chemistry ofArceuthobium (Viscaceae). Brittonia 31: 212–216.
Hawksworth, F. G., P. C. Lightle & R. F. Scharpf. 1968.Arceuthobium in Baja California, Mexico. Southw. Naturalist 13: 101–102.
— & D. Wiens. 1965.Arceuthobium in Mexico. Brittonia 17: 213–238.
- & -. 1972. Biology and classification of dwarf mistletoes (Arceuthobium). U.S.D.A., Agric. Handbook 401, Washington, DC.
—. 1977.Arceuthobium (Viscaceae) in Mexico and Guatemala: additions and range extensions. Brittonia 29: 411–418.
Player, G. 1979. Pollination and wind dispersal of pollen inArceuthobium. Ecol. Monogr. 49: 73–87.