7. CC. Bristles falling with the spikelet at maturity. Bristles united into a burrlike involucre, the bristles retrorsely barbed. Cenchrus EE. Spikelets not subtended by bristles D. Glumes or sterile lemma awned, inflorescence panicleate; spikelets silky. Rhynchelytrium DD. Glumes and sterile lemma awnless E. Fruit flexible, usually dark colored, lemma with white hyaline margins Spikelets in slender racemes more or less digitate at the summit of the culms Digitaria EE. Fruit rigid Spikelets placed with the back of the fruit turned toward the rachis of the spikelike racemes Fruit not long acuminate; at least one glume present F. First glume wanting; spikelets plano-convex Paspalum FF. First glume present, spikelets in panicles, culms herbaceous Panicum 16. Guttiferae Galophyllum Inophyllum L. A low branching tree to 60 ft., rough gray bark; leaves 3-8" long, leathery, nearly oval; flowers white, 1" across in clus- ters of 4-15; 4 sepals; 4-8 stamens. Fruit round and green.