126 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
Andropogon ischaemum I.. Sp. Pl. 1047. 1753. 
This is an Old World plant, but the only specimen in the herbarium is marked 
“11 Ischaemum” and is A. furcatus Michx. This should not be taken as the type 
of the species, since it is not the plant Linnzus describes. 
Andropogon insulare L. Syst. Nat. ed. 10. 2: 1804. 1759. 
The type specimen is from “Br.’’? It is Valota insularis (L..) Chase (Panicum leu- 
cophaeum H. B. K.). After his own description Linnzus cites Sloane’s plate 14, 
figure 2, which is also this species, but he does not use Sloane’s diagnosis. 
Andropogon barbatum L. Syst. Nat. ed. 10. 2: 1805. 1759. 
The type specimen, from ‘Br,’’ agrees with Linnzeus’s description. Tt was first 
marked Andropogon fasciculatum; the specific name was scrat@hed and barbatum 
written above. This latter name is also scratched and polydactylon written alter. 
Both changes appear to have been made by Linneus. The plant is Chloris polydactyla 
(L.) Sw., as described in Grisebach’s Flora.¢  Linneeus here cites Sloane, plate 65, 
figure 2, which he earlier referred to Andropogon fasciculatum, but which in fact is 
Chloris polydactyla, Later ® Linnzeus changes the name barbatum to polydactylon, citing 
Browne and also the plate of Sloane just mentioned. Upon these grounds Nash forms 
the name Chloris barbata (L.) Nash, ¢ but according to the recent code of nomenclature 
this name can not be used on account of Chloris barbata (L.) Sw. Fl. Ind. Occ. 1: 300. 
1797, which is Andropogon barbatum L. Mant. 2: 302. 1771, from the East Indies. 
Andropogon fasciculatum L. Sp. Pl. 1047. 1753. 
Munro@ states that there are two Linneean specimens marked with this name, one 
being Hleusine indica and the other Pollinia ciliata. The only plant from America 
bearing this name in the Linnzean herbarium is the sheet mentioned above under 
Andropogon barbatum, in which the name fasciculatum was scratched. But this speci- 
men is marked “‘Br’’ and presumably was not available when Linnaeus drew up his 
original description, though the description applies well to this specimen, This 
specimen is, no doubt, the basis of the Browne synonym cited in Sp. Pl. ed. 2. 1483. 
1762, under A. polydactylon. Linneeus ¢ cites Morison, Gramen Dactylon indicum, 
etc., but this is an Indian plant and has villous spikes, while Linnzeus remarks that 
the spikes in his specimen are glabrous. The habitat is given in the original pub- 
lication as ‘‘Indies,’’ that is, the West Indies. Linnaeus / doubtfully refers here 
Sloane, plate 65, figure 2, which is Chloris polydactyla (L.) Sw., cited later under 
Andropogon barbatumg and A. polydactylon.h We may therefore climinate these 
two synonyms of Morison and Sloane, which are the only ones given. In the 
Systema Naturae? Linnzeus retains A. fasciculatum along with his new A. harbatum 
to which he transfers the Sloane citation. In the Pugillus Jamaicensium/ he does 
not mention A. fasciculatum, but he gives A. barbatum, which is founded on the 
Browne specimen. In the second edition of the Species Plantarum he still retains 
A. fasciculatum with the original description and the Morison citation, introduces a 
new citation (Browne Jam. 365), and changes the Sloane citation to plate 69, figure 2, 
which is Paspalum virgatum. It is evident that the type of A. fasciculatum is not 
from America in spite of the continued reference to American citations. 
Holcus laxus L. Sp. Pl. 1048. 1753. 
The type specimen is a Gronovian plant numbered 589, upon which Linnzeus has 
written “6 laxus.’? It is Uniola lava (.) B.S. P. (Uniola gracilis Michx.). Clay- 
ton no. 589 in the Gronovian herbarium is the same. 
oF, Brit. W. Ind. 539. 1864. / Loc. cit. 
bSp. Pl. ed. 2. 1483. 1762. g Syst. Nat. ed. 10. 2: 1305. 1759. 
e Bull. Torr. Club 25: 443. 1898. ASp. Pl. ed. 2. 1483. 1762. 
@ Proc. Linn. Soc. 6: 53. 1862. i Ed. 10. 2: 1305. 1759. 
€Sp. Pl. 1047. 1753. jAmoen, Acad. 5: 389. 1759. 
