Order II. 
TRIANDRIA DIGYNIA. 
55 
945 Spikes 2-3 together erect. Glumes hispid with two beards 
916 Panicles spreading, Stamens and pistils coloured. Stem branching 
947 Panicles twiggy, Leaves divaricating 
948 Panicles lax nodding, Spikelets beardless, Leaves lanceolate pilose, Sheaths hirsute, Valves mucronate 
949 Panicles spreading, Flowers solitary muricated. Stem rooting ascending 
950 Panicles capillary erect spreading, Pedunc. straight. Glumes acuminate smooth, Sheaths very hairy 
951 Panicles with simple lateral racemes, Leaves ovate lanceolate hairy at the neck. 
952 Panicles few axillary, Stem dichotomous. Sheaths dotted 
953 Panicle much branched. Leaves ovate oblong acuminate, Shrubby 
954 Panicles branched diffuse. Glumes acuminate smooth gaping. Leaves reedy 
955 Panicles oblong flexuose capillary spreading. Glumes two-flowered, Leaves linear-lanc. Stem creeping 
956 Panicled, Sheaths of the leaves ciliated lengthwise 
957 Pan. short beardless. Stem much branched divaricating. Flower-stalks 2.flow. one shorter than the other 
958 Panicles simple upright, Spikelets appressed. Leaves oblong lined plaited. Sheaths pubescent 
959 Pan. spiked whorl. Invol. 1-fl. with hairs in bundles toothed hispid, teeth reversed, Herm. palese smoothish 
960 Raceme spiked cylind. Invol. 2-fl. with hairs in bundles, hispid above, Herm. paleae wavy crosswise 
961 Pan. spiked cylind. Invol. 2-fl. with hairs in bundles, hispid above, Herm. paleae smoothish. Sheaths downy 
962 Spike comp. interrupted at base nodding, Spikelets heaped, Invol. setaceous much longer than flower 
963 Spike comp. Spikelets panicled in bundles. Bristles mixed with the florets very long, Pedunc. smoothish 
964 Spike round. Involucres setaceous villous 1-flowered as long as florets, Leaves flat 
965 Spike compound contracted, Spikelets heaped, Invol. setaceous longer than the flowers, Rachis hairy 
966 Spike elongated cylind. Invol. 2-fl. bristly, Herm. paleas smoothish. Stem ascending. Sheaths smooth 
967 Stem branched. Sheaths pubescent. Spike dense short, Setee none, Palese smooth 
968 Spike compound erect. Clusters remote, the lowest sessile. Setae 8 times as big as florets 
969 Sheaths very rough. Spike simple with naked setee longer than florets 
970 Spikes one-sided alternate, Glumes 2-fl. bearded hispid 
971 Spikes alternate one-sided, Spikelets subdivided. Glumes bearded hispid, Rachis triangular 
972 Spikes alternate and in pairs, Spikelets subdivided, Glumes bearded hispid, Rachis 5-angular 
973 Spike compound, Spikelets appressed alternate. Glumes torn, All the valves bearded outer largest 
974 Bundles about ten, Rachis very hairy. Glumes bearded smooth a little fringed. Leaves ovate acum. wavy 
975 Joints of the stem smooth, Involucres ciliated 
976 Joints of the stem villous, Involucres rough 
977 The only species 
978 Beard feathered 
979 Flowers panicled spiked nearly included in the sheaths. Beard feathered 
980 Beard naked straight. Glumes longer than the seed, Leaves smooth inside 
981 Panicled, Beards naked twice as long as glumes, Seeds woolly 
982 Beard naked rough twisted in various directions 
983 Beard hairy at base. Panicle spiked. Leaves filiform 
984 Panicles branched compressed. Leaves linear smooth, Stem diffuse 
985 The only species. A plant looking like a Polypogon 
986 The only species 
ajid Miscellaneous Particulars. 
147. Orikopogon. O^^og, straight, and ^Mynjv, a beard, because the beards of the flower are straight, and not 
jointed. This plant is cultivated in the low and marshy lands of Jamaica as fodder. 
148. Penicillaria. From penicillus, a pencil, in allusion to the soft hairy appearance of the spikes. 
149. Lappago. The flowers are rough, with little prickles like Lappa or Burdock. 
150. Stipa. From s-utyi, silky or feathery material. S. pennata has beautifully feathered beards which dis- 
tinguish it from all other grasses. Gerarde says, they were worn in his time by " sundry ladies instead of 
feathers." S. tenacissima is used in Spain for the same purposes as Lygeum spartum, and like it, is called Es- 
parto. It is supposed by some to be the plant so called by the ancients. 
151. Muhhenbergia. Named in honor of Dr. Muhlenberg, an eminent North American botanist. A North 
American genus of grasses. 
152. Chceturus. From vasiTw, a head of hair, and a tail. So named by Link, from the silky appearance 
of tji^e panicles. 
j153. Lagurus ; X»yo;, a hare, and a tail ; hare's-tail, which its heads resemble. 
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