HITCHCOCK AND CHASE—-NORTH AMERICAN PANICUM. 57 
21. Panicum gattingeri Nash. 
Panicum capillare campestre Gattinger, Tenn, Fl, 94. 1887, not P. campestre Nees, 
1826. No definite locality in Tennessee is given. In the Gattinger Herbarium are 
four specimens very much alike labeled ‘ Paniewm 
capillare L. var. campestre Gattinger”’ in Gattinger’s 
hand. The specimen with the following data is chosen 
as the type: ‘‘Cedar glades near Nashville, Sept. A 
Gattinger.’’ 
Panicum capillare geniculatum Scribn. in Kearney, 
Bull. Torrey Club 20: 447. 1893, not P. geniculatum 
Lam, 1798. ‘In the neighborhood of Wasiota,’’ [Bell 
Fig. 38.—P. gattingeri. From County, Kentucky]. No type is indicated. Kearney 
type specimen. (on page 479) lists numbers 317, 335, 378, 497 as P. 
capillare geniculatum. A sheet of Kearney’s no, 378, col- 
lected near Wasiota, Bell County, Kentucky, in 1893, in the National Herbarium, and 
evidently the only one of the cited series examined by Scribner, is taken as the type. 
Panicum capillare gattingeri Nash in Britt. & Brown, lust. Fl. 1: 123. 1896. Based 
on P. capillare campestre Gattinger. 
Panicum gattingeri Nash in Small, Fl. Southeast U.S. 92 and 1327. 1908. Based 
on P. capillare campestre Gattinger. 
DESCRIPTION, 
Plants at first erect, but soon decumbent-spreading and rooting at the lower nodes, 
freely branching from the lower and middle nodes; culms papillose-hispid, in robust 
specimens as much as | meter in length; sheaths hispid like the culms; blades 10 to 20 
em. long, 6 to 10 mm. wide, narrow to a rounded base, more or less hispid on both 
surfaces or nearly glabrous; panicles numerous, terminating the culms and main 
branches and auxillary at most of the nodes, short-exserted or, especially the axillary, 
included at base, oval or elliptic in outline, the terminal 10 to 15 cm. long, two-thirds 
as wide, the lateral smaller, rather densely flowered, the branches ascending or tardily 
spreading; spikelets shorter-pediceled than in P. capillare and more turgid, 2 mm. 
long, 0.9 to 1 mm. wide, elliptic; first glume about two-fifths as long as the spikelet, 
acute or blunt; second glume and sterile lenima equal, 5-nerved, but slightly exceed- 
ing the fruit, the palea of the sterile floret wanting; fruit 1.6 mm. long, 0.8 mm. wide, 
elliptic. 
This species differs from P. capillare in the branching, spreading habit, and the 
numerous panicles, oval in outline and 
less diffuse, produced from all the 
nodes. The spikelets in P. gattingeri 
are not so variable in length as in the 
other species in this group. 
tees. l 
' 
DISTRIBUTION. Beet ENR 
: 
a : - 
“r Teeeeep teem e eng Ley 
4 oy 
H 
ug ! 
Open ground and waste places, often 
a weed in cultivated soil, Pennsyl- | ene 
vania to Iowa and Missouri, south to— 
North Carolina and Tennessee, 
This is the form introduced into Fig. 39.—Distribution of P. gattingeri. 
South Africa and described by Stapf 
as P. capillare.4 
Ontario: Kingston, Fowler in 1897 (Field Mus. Herb.). 
PENNSYLVANIA: Lancaster County, Heller in 1901. 
@ Dyer, Fl. Cap. 7: 407. 1898. 
