125 



The Asclepiadaceae are abundant and mostly early flower- 

 ing. Raphionacme, Asclepias, Xysm-alobium, Schizoglossum, 

 Sisyranthus are all represented by numerous species. Heben- 

 streitia and Selago (Selagineae) are also represented by 

 several species. Lippia asperifolia (Verbenaceae) is very 

 common. The Labiatae include Ocimum obtusifoliuin, 

 O. obo vat uw (uFukuzela), Orthosiphon ineoncinnus, 0. 

 macranthus, Plectranthus calycinus, P. tomentosus, Leucas 

 martinicensis, species of Stachys, Ajuga ophrydis, and many 

 others*. 



Among' the Thymeliaceae the genus Lasiosiphon is most 

 important, including 7>. linifolius (isiDikili), L. kraussii. 

 L. anthylloides var. macrophylla, L. s plendens , The Euphor- 

 biaceae are represented by various species of Euphorbia, 

 Cluytia, and Acalypha. 



The Monocotyledons are so very abundant, that no 

 attempt will be made to name species. The Orchidaceae are 

 represented by the genera Hahenaria, Disa, Satyrium, Brown- 

 leea, Eulophia, Lissochilus, Brachycorythis , Disperis, Cory- 

 cium and others, though a great number of the species belong 

 to the hydrosere. 



The Iridaceae include Moraea, Aristea, Hesperantha, 

 Dierama, Watsonia, Tritonia, AfAdanihera, Crocosmia, 

 Gladiolus, Aniholysa, and others. 



The Amaryllidaceae include Hypoxis, Anoiganthus, 

 Apodolirion, Cnnuin, Brunsvigia, Nerine, Cyrtanthus, Hac- 

 manthus, Buphane, and others. 



The Liliaceae include Asparagus, Aloe, Kniphofia, 

 Bulbine, E ' riospermum, Anthericum, Chlorophytum, Tul- 

 baghia, Drimia, Dipcadi, Galtonia, Albuca, Urginea, 

 Drimiopsis, Eucomis, Scilla, Ornithogallum, Androcymbium , 

 and others. 



The detailed plant ecology of these associated plants has 

 hardl} 7 ' been. studied. We know the distribution of only very 

 few of them. It would not have been worth our while deal- 

 ing with them even to the extent which has been done, were 

 it not that it emphasizes, by the reference to concrete 

 examples, the tremendous variety that is found. Economi- 

 cally, many of them are of importance chiefly in the wrong 

 direction, since various stock diseases result from their being 

 eaten. The ecological study of the flowering plants of the 

 Yeld as distinct from the grasses should be undertaken, since 



