302 BOTANICAL GAZETTE [APRIL 
It may be well to record here certain changes in the names of a few 
species of Panicum listed in the Catalogue, as shown by the recent revi- 
sion of this group. 
Panicum aquaticum Poir. This is a synonym of P. dichotomiflorum 
Michx. The Cuban species is P. elephantipes Nees. 
Panicum compactum Sw.=Lasiacis compacta (Sw.). 
Panicum distantiflorum Rich. To this species was referred Panicum 
utowanaeum Scribn. (P. Sintenisii Nash), which proves to be a 
distinct species. It is represented by two specimens from Tris- 
cornia, near Habana, Hitchcock 141 and Tracy 9089. 
Panicum divaricatum L.=Lastacts pivartcaTa (L.) Hitche. 
Panicum Grisebachii Nash= Lasiacis Grisebachii (Nash). 
Panicum hirtivaginum Hitchc. This species appears to be the same as 
P. Ghiesbreghtiit Fourn. of Mexico. ‘ 
Panicum laxum Sw. To this was referred P. polygonatum Schrad. which, 
however, proves to be distinct, and is easily recognized by 1ts 
pubescent nodes, and by the lack of the swollen sterile palea which 
characterizes P. laxum and P. pilosum. 
Panicum numidianum Lam. This species appears to be confined to 
the North African area and, though not well known, is sufficiently 
distinct from P. barbinode Trin. of Cuba and tropical America. 
Panicum Rugellii Griseb.=Lasiacis Rugellii (Griseb.). 
Panicum Sellovii Nees. An earlier name is P. millegrana Poit. 
Panicum Sloanei Griseb.=Lasiacis Sloanei (Griseb.). 
Panicum Swartzianum Hitchc.=Lasiacis Swartziana (Hitchc.). = 
To these may be added the following two corrections in genera alli 
to Panicum: 
Mesosetum rottboellioides (H. B. K.) Hitche. A comparison of the phe 
specimens shows that the Cuban species is Mesosetum loliiformé 
(Hochst.) Chase (Panicum loliiforme Hochst. 5). oe 
Hymenachne auriculata (Willd.) Chase. The specimen mention ps 
Wright 3863 in part, is H. patula Fourn.’—-A. S. HrrcHcock, U.S. 
Department of Agriculture, W ashington, D.C. 
‘Hitcucock and Cuase, Contr. Nat. Herb. 15:1-396. 1910. 
’Steud. Syn. Pl. Glum. 1 756. 1854. 
® Mex. Pl. 2:37. 1886. 
