Plants and their ways in South Africa . Fig. 250.—Mystacidiumfilicorne, Lindl. An epiphytic Orchid with aerialroots. Satyridium is distinguished from Satyrium by the pollenmasses being attached to a single gland. There is but onespecies, S. rostratum, Lind. Disa.—Sepals nearly equal and separate ; the odd one,which is at the back, and forms the conspicuous part of theflower, is helmet-shaped, i-spurred, or saccate. The lip inmost species is small. In the blue Disa it is quite leafy, or the leaves reduced to bracts. Roots tuberous. Classification of Plants 279 D. uniflora^ Berg. (u
Plants and their ways in South Africa . Fig. 250.—Mystacidiumfilicorne, Lindl. An epiphytic Orchid with aerialroots. Satyridium is distinguished from Satyrium by the pollenmasses being attached to a single gland. There is but onespecies, S. rostratum, Lind. Disa.—Sepals nearly equal and separate ; the odd one,which is at the back, and forms the conspicuous part of theflower, is helmet-shaped, i-spurred, or saccate. The lip inmost species is small. In the blue Disa it is quite leafy, or the leaves reduced to bracts. Roots tuberous. Classification of Plants 279 D. uniflora^ Berg. (usually\called ^^<3!/2^/)f(irrt) is the finest one,although others are quite beautiful if less showy. In Flora Capensis, the species oiDisa with the lip posteriorare separated to form the genus Fig. 251.—Disa racemosa, Linn. Those with the glands of the pollinia united are placed inthe genera Monadetiia (odd sepal spurred), Amphigeiia (rostel-lum without appendage), Herschelia (rostellum 3-toothed). Schizodium is similar to Disa, but the sharp angles atthe nodes will tell this genus. Petals narrow, 2 -lobed at thetip, or twisted, and often eared at base. The lip is anotherdistinguishing feature. It is as long as the sepals, narrowedabove the base and often pointed, or the tip may be broad andwaved, marking the lip into three distinct parts—a lower,upper, and middle. Disperis, Pterygodium, and Ceratandra are nearly 28o Plants and their Ways in South Africa allied genera with the differences given in the key. InDisperis and Ceratandra the lip is clawed. Pterygodium has a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1915
