Andropogonec.] CO. GRAMINEJE. |0 13193 
92. Traehypozon, Nees, Agrostol. Bras. 341, pro parte. —Spiculee l-flore, secus spieze 
rhachin subarticulatam ad nodos gemin:, altera subsessilis, flore masculo v. si herma- 
phrodito sterili, altera pedicellata, flore hermaphrodito. Glum:e ssepius 4, extima vacua, 
rigida, mutica, c:eteras amplect secunda subsimilis nisi paullo minor tenuiorque, tertia 
tenuissima, hyalina, vaeua, nunc angustissima v. evanida ; terminalis florens in spieula 
sessili tenuissime hyalina, mutica, in spicula pedicellata basi angustissi (in T. capensi 
brevissime) hyalina, in aristam longissimam tortam superne geniculatam producta ; palea 
minima v. 0. Stamina 3. Styli distincti, stigmatibus plumosis. Caryopsis oblonga, 
glumis exterioribus inclusa, libera. —Gramina elata, perennia, foliis longis angustis planis 
v. siccitate convolutis. Spies ad apicem pedunculi solitariz v. 2-3-n:e, sessiles, erect, 
longiusculz, simplices, aristis longis rigidis iis Heteropogonis subsimiles. Spicule sub- 
imbricatw, rhachi appressce. 
Species 11 enumerat Anderson in Ofvers. K. Vet. Akad. Stockh. 1857, 46, quarum una Afriee 
australis, ezeterze Americee tropicze et subtropicze a Brasilia usque ad Mexieum incole; plures tamen 
vix inter se distinguendze et a Hackelio (in litt.) omnes in unam junguntur. Kunth, Rev. Gram. ii. 
*661, 4. 195 (Andropogon). | Fourn. Gram, Mez. 65. 
Flos spieule sessilis, ut rite observavit Kunth, saltem in 7. Montufati (T. molli) hermaphroditus 
apparet, ovarium tamen semper macrum vidimus, stigmatibus imperfectis v. 0, nec unquam post 
anthesin auctum. 1 
93. xeteropogon, Pers. Syn. Pl. ii. 533.—Spiculee 1-florze, secus spice rhachin articu- 
latam ad nodos gemin:e, altera sessilis, flore foemineo (v. hermaphrodito ?) fertili, altera 
pedicellata, flore masculo v. anantha. Glum:e spicule sessilis 4, extima vacua, dura, 
convoluta, mutica, secunda pariter vacua, tenuior, carinata, tertia tenuissime hyalina, 
vacua ; florens ad aristam longam rigidam tortam geniculatamque ima basi attenuatam 
hyalinamque reducta; palea parva hyalina v. 0; in spicula pedicellata exaristata gluma 
extima quam in sessili tenuior. Stamina 3. Styli distincti, stigmatibus plumosis. 
Caryopsis angusta, glumis exterioribus induratis inclusa, libera.—Gramina annua (v. peren- 
nia?) erecta, interdum elata, foliis angustis vaginis compressis. Spiez in pedunculo 
terminali solitarise, erectze, dens, spiculis sessilibus ad unum latus subpatentibus, aristis 
longis tortis insignes ; spicule. pedicellatze mutiese ad alterum latus appresss, 2-seriatim 
imbricatz. ' à 
Species 5 v. 6, regionum calidiorum Europee, Asiz, Afric et, Australiz incole, quarum 2 genuinz : 
H. contortus, Rar. et Sch. (H. hirtus, Pers.), et H. melanocarpus, Ell. (H. Roylei, Nees, H. acuminatus, 
TTrio., Trachypogon scrobiculatus, Nees), etiam in America tropiea et boreali late disperse, et prior 
in Europa presertim Mediterranea invenitar. Adsunt preterea 3 v. 4 Africanw tropiez adhue 
minus cert. Kunth, Enum. Pl.i. 486. Al. Fl. Ped. iii. t. 91. Mog. Fl. Ment. 1. 48 (omnes. sub 
onc). Beauv. Agrostogr. 134, t. 23, f. 8. Benth. Fl. Austral. vii. 516, et in Journ. Linn. Soc. 
xix. 71. Nees, Gen. Fl. Germ. Monocot. i. n. 94. teichb. Ic. Fl. Germ. (. 63. Fourn. Gram. Meza. 64. 
'94. Andropogon, Linn. Gen. ». 1145.—fSpicule secus spiez rhachin articulatam ad 
nodos geminze, altera sessilis, flore unico hermaphrodito (v. rarius abortu fcemineo ?), altera 
pedicellata, exaristata, flore masculo v. rarius hermaphrodito sterilique, v. ad glumas 
vacuas reducta. Glum:ze spiculwe sessilis 4, extima ceteris major, vacua, mutica, 3-o0- - 
nervis, nervo medio interdum tenuiore v. evanido, secunda vacua, carinata, acuta v. 
rarius in aristam rectam producta, tertia multo minor, tenuiter hyalina, vacua ; terminalis 
florens basi hyalina, angustissime stipitiformis v. parum dilatata, integra v. 2-fida, arista 
sepius rigida torta superne genieulata terminali v. inter lobos instructa ; palea parva 
hyalina v. 0. Stamina3. Styli distincti, stigmatibus plumosis. Caryopsis glumis exte- 
rioribus inclusa, libera.—Gramina habitu vario, s:epe elata, ramosa, foliis sepius 
angustis planis. Spice quam in Jscluemo sopius tenuiores, pilis rhacheos et pedicellorum 
sepius hirte subsericesw v. fere lanae, in pedunculo solitaris geminze v. plurim:e con- 
fertze, simplices v. rarius ima basi divise, spieularum paribus secus rhachin semper 
pluribus; spiculse terminales cujusve spice sspe ternzo, centralis sessilis cum 2 pedicellatis, 
