88 l6. GRAMINEAE 



Leaf-blade passing into the sheath without a joint and without a stalk, 

 rarely transversely veined. Stem herbaceous. [Subfamily POOI- 

 DEAE.] 79 



66. Stamens 3. Styles 2 — 3, free. Outer glumes i — 2, Pericarp dry and 



thin. [Tribe ARUNDINARIEAE.] 67 



Stamens 6 68 



67. Spikelets 2-flowered. Upper flowering glume keeled. Herbs. — Species i. 



Equatorial West Africa Microcalamus Franch. 



Spikelets many-flowered. Flowering glumes not keeled. Undershrubs 

 or shrubs. — • Species 2. East and South Africa. They yield wood, 

 fibre, vegetables, edible seeds, and medicaments. Arundinaria Michx. 



68. Fruit a nut or a berry ; pericarp thick, free from the seed. Tall shrubs 



or trees 69 



Fruit a caryopsis ; pericarp thin, adnate to the seed. [Tribe BAMBU- 

 SEAE.] 72 



69. Palea rounded on the back, similar to the flowering glume. Spikelets 



i-flowered. [Tribe MELOCANNEAE.] 70 



Palea 2-keeled. Fruit a nut. [Tribe DENDROCALAMEAE.] . . 71 



70. Spikelets in one-sided spikes, the axis not continued beyond the flower. 



Outer glumes acuminate. Fruit a large apple-like berry. Trees. — 

 Species i. NaturaUzed in the Island of Mauritius. The fruits are edible ; 



also the wood and the fibres are used Melocanna Trin. 



Spikelets in panicled clusters, the axis continued beyond the flower in the 

 form of a bristle. Outer glumes rolled inwards. Fruit a small wTinkled 

 nut. Shrubs. — Species i. Madagascar. Used medicinally. 



Schizostachyum Nees 



71. Spikelets i-flowered, in scattered heads. Lodicules 2 — 3, large. Fruit 



oblong. — Species I. Madagascar. . . . Cephalostachyum Munro 

 Spikelets 2- or more-flowered, in panicled glomerules. Lodicules 1—2, 

 very small, or absent. Fruit subglobular, beaked. — Species i. Natural- 

 ized in the Island of Mauritius. Yields wood, fibre, vegetables, edible 

 seeds, and medicaments, and is also used as an ornamental plant. 



Dendrocalamus Nees 



72. Filaments united into a tube. Palea of the uppermost (hermaphrodite) 



flower of each spikelet usually i-keeled 73 



Filaments free. Palea of the uppermost flower 2-keeled, rarely without a 

 keel 75 



73. Spikelets terete. Lodicules none. Tall shrubs. — Species 5. Central 



Africa. Oxytenanthera Munro 



Spikelets compressed. Herbs 74 



74. Outer glumes 2. Fruit spindle-shaped, furrowed ; style much broadened 



at the base, Spikelets in racemes. — Species i. Equatorial West 



Africa. Atractocarpa Franch. 



Outer glumes 3 — 4. Fruit subglobular, not furrowed ; style not broadened. 

 — Species 5. Equatorial West Africa Puelia Franch. 



