Pirate XLVIII. 
ANDROPOGON Atuioni, DC. 
Natural Order GRAMINER. 
Section of genus Andropogon having solitary or fasciculate spikes at 
the summit of the culm. 
Gen. Cuar.— Spikelets in pairs or in threes above, of one flower 
each, polygamous, the female and hermaphrodite spikelets always 
sessile. Outer glumes nearly equal, either awnless or the uppermost 
awned. Flowerimg glumes membranous, the lower one rounded on the 
back, the upper shorter and awned in the fertile flowers. Pale 2, 
smooth.” Gren. et. Godr. Fl. de Fr. i. 465. 
Spec. Cuar.—Spike solitary, terminal. Sprkelets in pairs, lower 
ones all male, upper ones male and female, the former stalked and the 
latter sessile. Female spikelet bearded at the base; outer glumes stiff, 
nearly equal, brown, rough with hairs, the uppermost membranous at the 
edge ; flowering glumes much shorter, the uppermost awned, entire ; 
awns as long as the spike, twisted, sliphtly attached to the interior of 
the glume at the base. 
Andropogon Allionii, DC. Fl, Fr, iii. 97; Gren. et Godr. Fl. de Fr. 
ii. 467 ; Woods, Tour. Fl. p. 395. 
Hasirat.—Jurassic limestone rocks on the eastern side of Pont St. 
Louis. October, November. 
Remarks.—The genus Andropogon is said to have representatives 
in every quarter of the globe, inhabiting the subtropical regions. 
' Alph. de Candolle mentions a member of this genus in America, and 
says that Kunth records the same plant from Africa (Geog. Bot. ii. 
1046), while Dr. Hooker describes moors and turfy spots in India 
entirely covered with certain species (Himalayan Journ.). The present 
species is a decidedly rare Huropean plant, growing on warm rocks 
near Susa at the foot of Mont Cenis, in the Tyrol, on the shores of 
Lake Lugano (Parlatore, Fl. It. i. 149), thus reaching as far north as 
the Canton Tessin in Switzerland, whence it is cited by Nyman, who 
also records it in continental Italy, Sicily, and Dalmatia (Syll. Fi. Eur. 
404). The specimens figured were gathered near Pont St. Louis, in 
November, 1863. 
EXPLANATION OF Prats XUVIII.—Fig. 1, two male spikelets, from 
the lower part of the’ spike. Fig. 2, one stalked male and one sessile 
