30 Agnes Chase: Panicearum genera ac species aliter disposita. 1. 
Paspalum? velutinum Kth., 1829, Rev. Gram., I, 27. 
Represented by Pringle 6623 and 9565. 
8. Syntherisma Perrotteti (Kth.) A. Chase, l. c., p. 191. 
Panicum Perrotteti Kth., 1829, Rev. Gram., II, 395, t. 3. “Crescit 
in Senegalia, prope Walo.” 
9. Syntherisma stenotaphroides (Nees) A. Chase, l. c., p. 191. 
Panicum ($ Digilaria) stenotaphroides Nees, 1854, in Steud., Syn. PY. 
Glum., 1, 41. “Ins. Choin, legit Cuming.” 
This and an allied species are peculiar in having a thickened rachis, 
the solitary spikelets sunken in the alternate notches. 
Species as yet imperfectly understood are not here transferred. 
III. Leptoloma A. Chase, nov. gen., l. c., p. 191. 
Inflorescentia paniculata, panicula pauciflora, maturitate diffusa; spi- 
culae 1-florae, fusiformae, solitariae, aut raro per paria, in pedicellis 
tenuibus triangularibus; gluma prima minuta aut deficiens, secunda 3- 
nervis: lemma neutrum 5—7 nerve; fructus ellipticus, acutus; lemma 
hermaphroditum cartilagineo-induratum, papillosum, marginibus delicatus 
hyalinas, planis; palea similis; caryopsis oblongo-elliptica lemmate palea- 
que inclusa, libera. Gramina perennia, caespitosa, ramosa, culmis fragili- 
bus, laminis planis, ligulis membranaceis. Maturitate paniculae se dissi- 
pant et pervolvunt. Panico capillari similes. Nomen ab 4earoc delicatus 
et 4ouc margo. 
Type. — Panicum cognatum Schultes. 
10. Leptoloma cognata (Schultes) A. Chase, l. c., p. 192. 
Panicum divergens Muhl. in Ell. 1816, Sk. Bot., I, 130, not H. B. K., 
1815. Specimen in Elliott herbarium in College of Charleston. 
Panicum divergens Muhl., 1817, Gram., 120. “Habitat in Carolina." 
Specimen in the Muhlenberg herbarium in Philadelphia Academy 
of Natural Sciences, marked ‘‘Elliott 353." 
Panicum cognatum Schultes, 1824, Mant., II, 235. 
Panicum autumnale Bosc. Spreng., 1825, Syst., I, 320. 
11. Leptoloma divaricatissima (R. Br.) A. Chase, l. c., p. 192. 
Panicum divaricatissimum R. Br., 1810, Prod. 192. Port Jackson, 
New Holland. 
12. Leptoloma macratenia (Benth.) A. Chase, |. c., D: 192. 
Panicum macratenium Benth., 1878, Fl. Australia, VII, 468. “Queens- 
land, Rockhampton, 0’ Shanesy.” 
13. Leptoloma coenicola (F. Muell.) A. Chase, 1. c., p. 192. 
Panicum coenicolum F, Muell, 1855, in Trans. Vict. Inst., 45, Cud- 
naka, S. Australia, F. Mueller. 
