ANDRQPOGON.  ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 383 
Subvar. 1. typicus: gluma I^ levi; 2. asperiglumis: gluma Ir® 
spiculæ 8 punctis elevatis exasperata. 
Habitat forma typica in Brasilia pr. Socaia (Schott in h. Vind. ) et 
Rio Janeiro (Glaziou 1240); subv. asperiglumis pr. Galipan Colum- 
bie (Moritz 1550 in h. ber.) et pr. Chihuahua in Mexico (Palmer in h. 
m., forma racemis robustioribus). 
Obs. Species habitu multisque notis A. Biedelii affinior quam 
sequentibus, quibus tamen villositate artieulorum pedicellorumque, 
glumzque I^* marginibus anguste implicatis adjungenda. 
tt Racemi 3—10-(rarissime—12-)articulati, rhachi sepius plus minus serpentina; pedicelli spicularum tabes- 
centium (raro CJ) siccando demum extus curvali spiculaque valde patentes. — Culmi subeom- 
pressi. Spieul:e 9 gluma I** marginibus angustissime inflexa; 11% [*" æquans, chartaceo-membra- 
cea, lanceolata, acuta, 1-nervis, carina scabra (n. 20—23). 
x Gluma IV* breviter bidentata v. summum ad 1/3 usque fissa ; III* violaceo-tincta (n. 20). 
20. A. scoparius (Michx. Fl. bor.-amer. 1, p. 57). 
Innovationes omnes extravaginales, basi squamis aphyllis aggre- 
gatis tunicate. Culmi 40—120 cm. alti, subgraciles, infra nodos 
interdum pruinosi, a '/, inferiore v. a medio parcius ampliusve flori- _ 
fero-ramosi, ramis binis—4"*, primariis raro simplicibus, ssepius 
plurinodibus secundarios singulos—3"** edentibus, omnibus in race- 
mum subeompositum v. paniculam foliosam laxam collectis. Vaginze 
elevato-costat®, imæ dense aggregate, glaberrimze v. scabro-puncta- 
tæ v. patenti-pilos®, pilis interdum basi tuberculatis. Ligula brevis, 
truncata, glabra v. raro ciliata. Laminz superne breviter angustatse, 
acutissim®, 5—20 em. longs, 3—6 mm. latz, costa media subtus 
acute carinata. Spathe proprie anguste, 3—5 cm. longs, acute v. 
lamine rudimento mucronatz, pedunculum apice pilosulum v. gla- 
brum modo æquantes, modo eo breviores, raro longiores. Racemi 3,5 
—5 em. longi, anthesi stricte erecti, culmo fere appressi, pilosi, 6—12- 
arteulati, rhachi sepius leviter undulata rarius recta, articulis 
spicula sessili '/,—2-plo brevioribus lineari-subelavatis subgraeilibus 
v. crassiusculis (apice 0,7—1 mm. latis) quam spicula are 
angustioribus, appendice obsolete v. distinetius i 
bidentato, dorso scabris et spe pruinosulis, marginibus a '/, inferiore 
ad apicem usque pilis acerescentibus in vivo erectis, siecando patenti- 
bus ciliatis, insuper basi pilis articulo 3—6-plo brevioribus cinctis. 
Spieulz sessiles lineari-lanceolate, rhachi appressæ : glüma I“ 
