118 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Panicum clandestinum L. Sp. Pl. 58. 1753. 
The type, from “ K’’, is the autumnal state of this species as commonly understood, 
Linnzeus also cites Sloane, Hist. 1: 120. pl. 80, which is [ackelochloa granularis (1.) 
Kuntze ( Manisuris granularis Sw.), but the’ description of Linneeus does not apply to 
this. 
Panicum capillare L. Sp. Pl. 58. 753. 
The specimen is from “HoU.”’ Since Linneeus gives no description of his own, 
but bases the name on ‘‘Gron, virg. 13,”’ the type is Clayton no. 454. This, which is the 
same as the Linnwan plant, is the broad-leaved form with ample panicle, as described 
in Britton’s Manual. Linnzeus’s citation® of Sloane® is Panicum trichoides Sw- 
A specimen in the Stockholm herbarium marked “K’’ by Linnzeus is P?. philadelphi- 
cum Bernh, 
Panicum latifolium L. Sp. Pl. 58. 1753. 
There are two plants from “K’? upon the sheet on which Linnzeus has written the 
name. The left-hand plant is Panicum macrocarpon LeConte; the right-hand 
plant is Panicum clandestinum 1, both in the vernal state. Pinned to this is a sheet 
of Panicum divaricatum I., but Linnzeus has not written the name upon this. There 
is also a third sheet upon which Linneeus has written the name and “Br.’’ This is 
Panicum oryzoides Sw., but itshould be excluded from consideration, as Linnzeus appears 
to have received Browne’s plants after he prepared his Species Plantarum; at least he 
does not cite Browne’s specimens in the first edition, Linnzeus ¢ cites Sloane, Hist. 
Jam. 1: 114. pl. 77. f. 3, the species referred to being now called Panicum sloanei 
Griseb. It is the broad-leaved form with large panicle as distinguished from P. 
divaricatum LL. Linnwus@ gives a rather extended description, which applies to the 
first sheet mentioned above and not to the others. It would apply, I think, to 
either of the two plants upon this sheet, but rather better to the left-hand plant 
(P. macrocarpon LeConte). It has wider blades and the hairs around the base of the 
blades are as described: “Folia latitudine Commelinae ad fauces amplexicaulia; 
extus collo circum fauces villoso, etiam basi foliorum margine pilosa.”’ Further- 
more, he has already described Panicum clandestinum. The leit-hand plant is there- 
fore taken as the type and the name Panicum latifolium L. will stand for what we 
have been calling Paniewm macrocarpon LeConte, Some botanists have applied 
the name P, latifolium to the Sloane plant, but Sloane’s polynomial is a synonym 
incorrectly cited. It should be noted that Sloane’s polynomial is the second syno- 
nym given by Linnzus, the first being from Morison’s History, which probably is P. 
boseii, but certainly is not the Sloane species. The plant described as Panicum lati- 
folium by Gray and other early American botanists differs from P, macrocarpon 
LeConte in having bearded nodes and larger spikelets. This is described in Britton’s 
Manual as P. porterianum Nash, but an earlier name is 2. boseii Poir., the type of 
which is in the herbarium at Florence. 
Panicum virgatum L. Sp. Pl. 59. 1753. 
The type sheet bears the number 578 and Gronovius’s polynomial which accompa- 
nies this Clayton number in the Flora Virginica.e It is the species deseribed in our 
manuals as Panicum virgatum. Pinned to this is a sheet of the same species bearing 
the number 606 and Gronovius’s polynonual corresponding to this number of Clayton 
in his Flora, Linnzeus has written the name upon the first sheet only. 
aSp. Pl. 58. 1753, and ed 2. 86. 1762. d@Op, cit, 59, 
bist. Jam. 1: 115. pl. 72. f. 8. , €2: 133. 1743. 
cSp. Pl. 59, 1753; ed. 2. 87. 1762. 
