LIST OF LITERATURE QUOTED
- Baker , J. G. 1896 . “Iridaceae,” . in Flora Capensis , vi London.
- Bentham , G. and Hooker , J. D. 1880 . —Genera Plantarum, iii, London
- Bews , J. W. 1925 . —Plant Forms and their Evolution in South Africa, London
- Bolus , H. 1905 . — “Sketch of the Floral Regions of South Africa,” in Science in South Africa 198 Cape Town
- Bolus , H. and Wolley-Dod , A. H. 1903 . “A List of the Flowering Plants of the Cape Peninsula,” . Trans. S. Afr. Phil. Soc. , xiv : 3 207
- Chamberlain , C. J. 1921 . — “Growth Rings in a Monocotyl,” Bot. Gaz., Ixxii 293
- De Bary , A. 1884 . —Comparative Anatomy of Phanerogams and Ferns, English edition, Oxford
- De Cordemoy , H. J. 1894 . — “Recherches sur les Monocotylédones à Accroissement Sécondaire,” Thèse, Paris. Lille
- Haberlandt , G. 1914 . —Physiological Plant Anatomy, English edition, London
- Marloth , R. 1908 . “Das Kapland,” . Wissensch. Ergebn. der Deutsch. Tiefsee Exped. , Iii t. 3, Jena
- Marloth , R. 1915 . — The Flora of South Africa: IV. “Monocotyledons,” Cape Town
- Pax , F. 1888 . Iridaceae in Engler and Prantl, Die Naturl. Pflanzenfam., ii, Abt. 5 Leipzig
- Scott , D. H. and Brebner , G. 1893 . “On the Secondary Tissues of certain Monocotyledons,” . Ann. Bot. , vii : 21
- Von Post , T. and Kuntze , O. 1904 . — Lexicon Generum Phanerogamarum, Stuttgart