76. Lodicules none. Spikelets 2-flowered, in clusters surrounded by two bracts. Ovary glabrous. Style undivided, hairy.--Species 1. German East Africa. =Oreobambus= K. Schum. Lodicules 2-3. Spikelets without bracts. Ovary hairy. 77 77. Lodicules 2. Outer glume 1. Palea not winged on the keels. Styles 2, free. Spikelets many-flowered. Herbs with 4 large leaves.--Species 1. West Africa (Cameroons). (Under _Guaduella_ Franch.) =Microbambus= K. Schum. Lodicules 3. Outer glumes usually 2. 78 78. Palea with winged keels. Spikelets strongly flattened. Herbs.--Species 5. Equatorial West Africa. =Guaduella= Franch. Palea not winged on the keels. Spikelets slightly flattened. Tall shrubs.--Species 2. Cultivated and sometimes naturalized. They yield wood, fibre, vegetables, edible seeds, drinks, and medicaments, and are also used as ornamental plants. “Bamboo.” =Bambusa= Schreb. 79. (65.) Spikelets sessile in the notches on the rachis of a nearly always equal-sided spike, usually 2-ranked. [Tribe HORDEAE.] 80 Spikelets along a rachis without notches, in usually one-sided spikes or in racemes or panicles. 94 80. Spike one-sided. Spikelets solitary in each notch, 1-flowered. Outer glume 1, minute. Flowering glume awned. Stigma 1. Leaves stiff.--Species 1. Azores. “Matgrass.” [Subtribe NARDEAE.] =Nardus= L. Spike equal-sided. Stigmas 2. 81 81. Spikelets solitary in each notch of the spike. 82 Spikelets 2-6 in each notch of the spike. [Subtribe ELYMINAE.] 93 82. Spikelets with the back towards the hollows of the rachis. [Subtribe LOLIINAE.] 83 Spikelets with the side towards the hollows of the rachis. 88 83. Spikelets 1-flowered, awnless, the terminal one with 2 outer glumes, the others with one. 84 Spikelets 2-to many-flowered. 86 84. Flowering glumes with a hairy callus at their base. Outer glumes 1-3-nerved. Dwarf herbs.--Species 2. South and East Africa. =Oropetium= Trin. Flowering glumes with a glabrous, sometimes rudimentary callus. 85 85. Joints of the rachis of the spike produced into wing-like appendages.--Species 1. Island of Socotra. =Ischnurus= Balf. fil. Joints of the rachis of the spike without wing-like appendages.--Species 3. Madagascar, South and North-west Africa. =Monerma= Beauv. 86. Spikelets 2-flowered. Styles long. Outer glumes 2. Flowering glumes produced into 3 points.--Species 1. North-west Africa (Algeria). (Including _Kralikiella_ Coss. et Durieu). =Kralikia= Coss. et Durieu Spikelets many-flowered. Styles very short. 87 87. Outer glumes 2, awnless. Flowering glumes with 2 points and a dorsal awn. Lodicules 2-cleft. Fruit hairy at the top.--Species 2. North Africa. (Including _Meringurus_ Murbeck). =Gaudinia= Beauv. Outer glumes in the terminal spikelets 2, in the lateral single. Fruit glabrous.--Species 6. North, South, and East Africa. Two species (ray-grass) are cultivated on lawns; one (the darnel, _L. temulentum_ L.) is poisonous. (Including _Arthrochortus_ Lowe). =Lolium= L.