APPENDIX III. 25 



D. Fleckii Hack. 



Anniia. Culmi caespilosi, ascendeales, siniplices, hirsuti vel scabri, cum 

 panicula circ. 30 cm alti. Folia pilis basi tuberculatis pateutibus hirsuta : 

 lamiiicc lineares, sensim setaceo-acuminatae; ligula e ciliis brevissimis for- 

 mata. Panicula lineari-oblonga 10 — lo cm longa (dimidium culmi occupans), 

 compacta, densitlora, stricta e racemis formata creberrimis singulatim e 

 rhachi communi undique et interrupte enascentibus brevibus (1 — 2 cm) 

 erecto-patulis, rhachi racemorum scaberriraa. Spicula; in singulo racemo 

 6 — 8, brevissime pedicellatœ, lineari-oblongae, 3 — 5-flora?, circ. 6 mm longae, 

 virides et sordide violascentes, a latere compressa, sublaxiflorae, rhachilla 

 scabro-hirsuta. Glumee steriles inœquales (inferior Vs brevior), lineari-lan- 

 ceolatœ, acuminatse, l-nerves, carina scabrae, ^s fertilis superpositae tegentes. 

 Glumse fertiles lanceolatse, acutse, sicus carinam scabram arcte complicatse, 

 lateribus scabro-punctatae, 3-nerves, ex apice integro vel subdenticulato 

 exserens aristam scabram rectam quam gluma circ. Vs breviorem; palea 

 glumam subaequans, bidentata, carinis scabra. 



GR. NAM. : Rehoboth, Fleck!. 



Nulli arctius affmis, panicula lineari-oblonga condensata, aristis longius- 

 culis et radice annua distincta. 

 D. fusca (L.) P. Beauv. Essai Agrostrog. (1812), p. 163; Dur. et Schinz, 

 Consp., V, p. 878. 



AMR. : Kuukuejo, Schinz 613, im Wasser wachsend. 



Kapkolonie, Aegypten, Senegal ; Asien, Australien. 

 D. paucinervis (Nees) Hack. 



HER. : Walfischbay, zwischen den Dünen, Gürich lo2. 

 D. pungens Hack. 



Perennis, rhizomate repente. Culmus basi valde ramosus, inferne squa- 

 matus, superne dense foliatus circ. 40 cm altus, superne puberulus. Folia 

 innovatiorum conferto-disticha, glauca, vaginis sese involventibus. Ligula 

 minute ciliolata. Lamina e basi deltoidea lanceolatse, acuminatœ, pungentes, 

 rigidaj, superne pilis adspersaj, margine scabrae ceterum glaberrimae. Pani- 

 cula oblonga, densiuscula, 6 — 8 cm longa, stricta, vix patula, ramulis soli- 

 tariis simplicibus v. basi breviter ramulosis. Spiculae secus ramos distichae, 

 subimbricatae, brevissime pedicellatse, lineari-oblongae, S — 6-florae, circ. 8 mm 

 longae, pallide fulvse, densiflorae, rhachilla glabra. Glumae steriles fertilibus 

 breviores, lanceolatae, acutae, l-nerves, glabrae, inferiore superiore sub- 

 duplo brevior. Glumae fertiles late lanceolatae, acutae, apice minute biden- 

 tulae et mucronatae, 3-nerves, basi (callo-obtuso) et in dorsi Ys inferiore 

 secundumque nervös laterales appresse pilosa, dorso obtuse carinata. Palea 

 oblonga, obtusa, secus nervös pilosa. 



HER. : Horebis, Fleck!. 



Quoad tlorum structuram affinis est D. arenariœ Hack {Leptochloœ are- 



