h, Lv 



* 



122 



lanceolatae, 2*5 mm. Ig.; ad glumam Imam in acumen mucroni- 

 forme attenuatam 3-nervem, efc Ildam pusillam redactae. 

 Cuba, Ig. Wright nr. 3898. 



Affinis A. gracili Spreng., qui differt spicis dense sericeo- 

 villosis, spiculis lana subocculfcis, gluma IVa ad ^j^ — 7a ^ssa. 

 B) Sect. Heieropogon, 



9) A, kptocladus. Perennis. Innovationes extravaginales. 

 Culmi graciles, 50— 60 cm. alti, e nodis infevioribus 

 ramos floriferos elongates fastigiatos simplices gracillimos 

 agentes, superne simplices, sub spica longe nudi, ibique sca- 

 beruli , ceterum laeves , teretiusculi. Vaginae teretiusculae, 

 glaberrimae; ligiila oblonga 1'5 mm. Ig., ciliolata. Laminae 

 6 basi subangustata lineares vel sublanceolato-lineares, e Va 

 V. Y^ inferiore sensim in acumen setaceum attenuatae^ 

 6 — 10 cm. Ig.. 2 — 3 mm. It., vernatione convoluta, 

 adultae planae, v i r i d e s , glabrae , utrinque marginibusqne 

 scaberulae, nervo medio tenuissimo minime carinante percur- 

 sae; summa brevis, setiformis. Spica subrobusta, erecta, 3*5 — 4*5 

 cm, (demtis aristis) longa, virescens, extus glabra. Spicularum 

 pavia 4 — 6 inferiora mascula, i^hacheos artiowlis glabris scabris, 

 paria reliqua heterogama, rhacheos articulis pcdicellisque ma- 

 sciilis lineai'ibus, utrinque breviter rigideque albo-ciliatis. 

 Spiculae sessiles $ cum callo rectiusculo pungente an- 

 tice glabro, ad latera breviter albo- v. fulvescenti-barbato 

 2 mm. longo 7 mm. Ig., semper (etiam maturae) vires cen- 

 1 6 s ; gluma I^a lineari-oblonga, herbaceo-chartacea, 

 truncatula, 6-nervis, loco ncrvi medii sulco longitu- 

 dinal! exarata, toto dorso albo-hirtula ; IFJa obtusiuscula, 

 obtuse carinata^ glabra; Ilia apice ciliata; IVa e basi angusta 

 h jalina mox in aristam 40 — 50 mm. longam validam incrassata, 

 cujus columna rufescens albo-hirtula supra medium geniculata 

 subulam fulvam scabram '/a — '/a superat ; Va duplo brevior, 

 linearis, ciliata; antherae 1 — 1'2 mm. longae ; spiculae pedicel- 

 latac cT oblique lanceolatae, subtortae, e viridi et rufescente 

 variegatae, glaberrimae v. pHis parcis adspersae; gluma Ima 

 acuta margine altero latiuscule membranaceo-alata, 9-nervis ; 

 reliquae decrescentes ciUatae. Antherae 3 mm. Ig, 



Paraguay: in planitie Paraguaei, in pasculs, Balansa 

 nr. 222, in collibus incultis prope Itape, nr. 222a. 



Ab A, contorto L. notis typis remotis expressis valde di- 

 vers us. 



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