. The grasses and grasslands of South Africa. Botany; Grasses. 74 Fingerhulhia. F. africanu (Kalk gras) is a Karroo and transitional species which extends through Griqualand West to the Western region. It is a densely tufted xerophytic form. with small, usually convolute leaves. Its roots are yery strongly develojied. The leaves in cross section show very strongly girdered bundles, with conspicuous motor cells in the somewhat shallow furrows. F. sesleriaeforinis is a hygro- philous species, and like most Ylei grasses is widelj' distri- buted. Harpechloa capensis (See Fig. 2 B.) is widely distr
. The grasses and grasslands of South Africa. Botany; Grasses. 74 Fingerhulhia. F. africanu (Kalk gras) is a Karroo and transitional species which extends through Griqualand West to the Western region. It is a densely tufted xerophytic form. with small, usually convolute leaves. Its roots are yery strongly develojied. The leaves in cross section show very strongly girdered bundles, with conspicuous motor cells in the somewhat shallow furrows. F. sesleriaeforinis is a hygro- philous species, and like most Ylei grasses is widelj' distri- buted. Harpechloa capensis (See Fig. 2 B.) is widely distributed from Port Elizabeth through the Free State and Natal to the Transvaal, but though it occurs at various altitudes it is chiefly characteristic of Mountain Veld where it grows in tussocks associated with Microcliloci, Festuca, Koeleria, etc. On the Drakensberg it reaches altitudes of 10,000 feet. It has narrow leaves which are flat under moist conditions, convolute under dry conditions. It is a good grazing grass, very much liked by cattle. It is related to Chlcn-is, which its leaves resemble in cross section as is shown in Fig. 15. The chlorophyll tissue is arranged in rings around each bundle, and the whole upper half of the section is colourless. There are two or three irregular ridges at the midrib, the rest of the leaf being smooth, and the leaf folds conduplicate but does not roll up. There is a little sclerenchvma below each Fig. 15.âTransverse Sectiun of a portion of a leaf of Harpechloa capensis (x about 80). Holeiis. Both //. .â <ciigcr, which is annual, and H. Imiiiins, which is perennial, are introduced ruderals. The leaf of the latter is hairy on both surfaces, has rounded ridges with motor cells between, girdered bundles and a thin cuticle. Neitlier species is common in South Africa, being cultivated only on very poor soil. Iloi'deiim. //. serai ill urn is rather common in the South West. It is common in the temperate regions of tlie Northern he
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