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THE ANATOMY OF HAUSTORIA AND RELATED ORGANS OF GAIADENDRON (LORANTHACEAE)

1965; Canadian Science Publishing; Volume: 43; Issue: 6 Linguagem: Inglês

10.1139/b65-076

1480-3305

Job Kuijt,

Mediterranean and Iberian flora and fauna

The internal organization of the radicle, tuber, secondary roots, and haustoria is described for Gaiadendron punctatum (Ruíz & Pavon) G. Don. The root is characterized by a distinct root cap, an endodermis, and a tetrarch vascular pattern which is to some degree perpetuated after secondary growth sets in. Root hairs are absent from radicle and secondary roots. Haustoria are of the santalaceous type although a "gland" has not yet been found. Anatomical features confirm a close relationship of the genus with Atkinsonia and Nuytsia and emphasize the primitive position of these three genera within Loranthaceae–Loranthoideae.