KONGL. SV. VET. AKADKM I l.ss HANDLINGAR. BAND. 34. \:o 6. L9 



Die wesentlichsten Merkmale, um diese A it von Er. pilosa zu unterscheiden, aind 

 folgende: 



pilosa (Tal'. VIII, C, 3): I rankii (Ta!'. IX, B): 



spiculcB lineari-lanceolatse, longe pedicellatae (pani- spicula oblongae vel late oblongo-lanceolatse, bre- 



cula laxiuscula); viter pedicellatse (panicula densiore); 



rhaehis vix flexuosa; rhaehis argute flexuosa; 



Jlosculi erecti, cum rhachi parallell; articuli rba- flosculi approximati, divaricati; articuli br< 



chcos longi, tertiam valvulse partem sequantes; quartam valvulse partem sequantes; 



valvula inferior (a latere visa vel dimidiata) lan- valvula inferior (a latere visa) anguste triangu- 



ceolata, dorso vix incurvo, margine ad basin sensim lari-lanceolata, dorso recto, margine inferne abrupte 



arcuato; colore subnitens, apice baud ram diaphano, angulato, apice acuto producto; colore opace el sordide 



aureo, nervö laterali distincto sed non prominulo. violacea vel pallide plumbea, aervo laterali arguto. 



Unter den brasilianischen Arten sol] Er. Frankii der breiteren Ährchen wegen (nach 

 Döll's Aufstellung) in die Gruppe »spiculse pluriflorse latiusculae» und zwar in der Nähe 

 von Er. mexicana Link gestellt werden. 



Hab. in Brasilia, Rio de Janeiro, Widgren (annis 1842, L844); S. Paulo, Santos, 

 Sororocaba, loco arenoso sicco aprico, mens. lan. florens et matura, Mosén 3260 (anno 

 1875); etiain a G. W. Freyreiss lecta (anno 1815?); Rio Grande do Sul, Porto Alegre, ad 

 margines viarum urbis, locis maxime apricis meridiera spectantibus, inter saxa murorura 

 et viarum, mens. Sept. florens (anno 1892), Exp. I. Regnell., A, 231. 



Eragrostis Lind mani Hack. n. sp. — Taf. X, A. 



»Species (sect. Pteroéssas) annua, foliis lanceolato-linearibus, tenui-acuminatis, patule 

 pilosis, panicula lineari-oblonga contracta densissima, spiculis dense imbricatis, oblongis, 

 rhachilla persistente, glumis sterilibus quam fertiles duplo brevioribus, his late ovatis 

 acutiusculis, glabris, nervis lateralibus obsoletis, palea glabra, carinis scabra, persistente» 

 (Hackel in Ht.). 



Species Eragr. Neesii Trin. proxima. 



Descr.: Herba. annua Jaxe caBSpitosa; culmi 0,2 — 0,4 in alti, fasciculati, basi adscen- 

 dentes, nodis plerumque 3, supra basin raniosi, deinde erecti, stricti, rigidi, teretes, lanes. 

 iain inlra medium foliis destituti, internodio summo longissimo. Vaginw internodio bre- 

 \iores, paulum dilatatas, e tuberculis longe pilosie. Ligula linea transversalis, longe den- 

 sissimeque albo-pilosa. Lamina canescenti-viridis, nervis e tuberculis longe pilosis, e basi 

 anguste lanceolata linearis, ad apicem sensim angustata, 6 — 7 cm longa, infra medium 5 

 mm lata. Panicula erecta, plerumque contracta, densissima, apice rotundata, raro inferne 

 distanter lobata, 4 — 1) cm longa, 1,5 cm lata (rarius latius expansa), nunc pallide plum- 

 beo-violacea vel denique ochraceo-cana, nunc intense livida purpureo picta, spiculis ssepe 

 diversis paginis discoloribus; rami 1 — "2 cm longi, plerumque erecti, inde a basi spicuH- 

 geri, rhachin paniculae occultantes, infiini breviores, omnes cum summa rhachi asperuli. 

 Spiculce oblongae vel ex ovata basi lanceolatae breviter pedicellatae vel subsessiles, 5 — 6 

 mm longa 1 , infra medium 2 mm latas, floribus concinne imbricatis, numero 12 — 14. Glumce 



