560 MONOCOTYLEDONEE. ANDROPOGON. 
punctis congruentia invenies, immo ejusdem speeiminis spieule sæpe 
variant; varietates sequentes, quamvis habitu interdum satis discre- 
pantes, tamen formis intermediis arcte junguntur. 
a. € rg ssepius e gluma I** tantum aristatze, v. omnino mutic®, 
ma IIda etiam aristulam illà I*»** breviorem emittens; aristze hsec 
cum ilia glumæ Ide spieule 8 in 's v. '» inferiore v. basi tantum 
ciliate (a—4). 
Var. a, genuinus ; vaginarum nodis glabris ; spiculis 8 6 mm. lon- 
gis, callo 0,6 mm. longo albido-v. flavescenti-barbato. — A. Aucheri 
Boiss. ! 1. e. sens. str. — Laminæ lineares, acuminatze, inferne parum 
latiores, rigidulz, sepius pube minuta densaque subvelutine, rarius 
glabrz, plerumque insuper ad basin fimbriis basi tuberculatis adsper- 
sæ, 2—10 em. longz, 2—3 mm. latze. Spieula 8 callo obtuso, barba 
'— '/, spieule s:equante stipato; gluma I** acutiuscula; Il apice 
hyalino subintegra, in '/, superiore carin: longe ciliata, aristá brevi- 
ter v. inferne longiuscule ciliatá ; IV** arista 20—40 mm. longa. Pedi- 
celli spieula sessili 3-plo breviores, villis flavescentibus v. albidis 
densis, summis spieule c? medium zequantibus v. superantibus eiliati; 
spieule 5 gluma I= carina marginibusque ciliata, aristam brevissime 
v. prope basin longiuseule eiliatam raro ad '/, usque plumosam emit- 
tens; II** sepius mutica, raro breviaristata, interdum amb mutic®. 
Persia austr. (Aucher-Eloy 5465 ex p.); Belutschistan (Stocks); 
Afghanistan (ad Abigoor et Bolan Pass, Griff. 6814); Sindh (Stocks 
441, 643 in h. Boiss.; prope Karatschi l. Stead); Abyssinia (Schimp. 
126 ex parte, inter var. quinqueplumem). 
B, subpungens; vaginarum nodis barbatis; spiculis 8 7 mm. longis, 
callo ut in przecedente. — Laminæ lanceolato-lineares, 4—7 cm. lon- 
gæ, inferne 5 mm. late, sensim in acumen subpungens acutatze, rigi- 
dissimze, patentes, basi eiliate, ceterum glabrz, preter marginem 
seaberrimum leves. Spieule 8 albido-barbate, glumæ I" callus 
barba '/, glum:e æquante stipatus; H° arista basi tantum v. ad '/; 
usque ciliata; glumæ IV** arista 25 mm. longa; pedicelli spicula sessili 
plus duplo breviores, villis albidis spieule 5 medium sequantibus ; 
spieule Z' gluma I™ ut in a, Iè mutica. 
Belutschistan (Stoeks in h. Boiss.). : 
7, Chrysopus ; vaginarum nodis glabris, spiculis 8 7—10 mm. lon- 
gis, callo 1,5 mm. longo rufescenti-barbato. — A. Chrysopus Coss. 
herb. — Laminæ lineares, 4—9 em. longe, 2—3 mm. latz, acutius- 
