The genus ixocactus (Loranthaceae, s.s.): Description of its first species

@article{Kuijt2008TheGI,
  title={The genus ixocactus (Loranthaceae, s.s.): Description of its first species},
  author={Job Kuijt},
  journal={Brittonia},
  year={2008},
  volume={19},
  pages={62-67}
}
The first species ofIxocactus Rizzini,I. hutchisonii Kuijt, is described and illustrated. The genus is unique in the family in that it is squamate and lacks inflorescences. Other remarkable features are the dense covering of spines, tetracolpate pollen, the small number of pollen grains per anther, the small size of the flower, and the occurrence of this parasite on stems and roots of other mistletoes.Ixocactus is believed to be related toOryctanthus. 

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The anatomy of the endophytic system in this case showed that the haustorium had progressively grown into the cambial cylinder and had penetrated the secondary xylem of the host branches, and the penetration had induced thinning the host's cell walls of the invaded tissue, enhancing cytoplasm density, forming conspicuous plasmodesmata and pits, and triggering cell division.
The Hyperparasitism by Taxillus tsaii
TLDR
The anatomy of the endophytic system in this case showed that the haustorium had progressively grown into the cambial cylinder and had penetrated the secondary xylem of the host branches, and the penetration had induced thinning the host's cell walls of the invaded tissue, enhancing cytoplasm density, forming conspicuous plasmodesmata and pits, and triggering cell division.
The first mistletoes: origins of aerial parasitism in Santalales.
Mutual affinities of Santalalean families
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References

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NOTES ON THE ANATOMY OF THE GENUS ORYCTANTHUS (LORANTHACEAE)
In the taxonomically confused Loranthoideae of the Americas the genus Oryctanthus stands out as a distinctive entity. The following combination of characters is described in support of this
CRITICAL OBSERVATIONS ON THE PARASITISM OF NEW WORLD MISTLETOES
The parasitism of the mistletoes of the Americas is surveyed and integrated with recent observations on haustorial structure and mode of attack of the mistletoes of Central America and California.
Rank of the Subfamilies Loranthoideae and Viscoideae
TLDR
Important differences in floral structure, mode of development of the embryo sac, endosperm and embryo, and in the location of the viscid zone of the fruit are shown and adequately warrant the raising of the two subfamilies to the rank of fatnilies.