810 BULLETIN DE l'hERBIER BOISSIER. (216) 



EMBRYOPHYTA SIPHONOGAMA. 



GRAIUmEyH. 



E. HACKEL (St. Polten). 



Tetrapogon flabellatus HACK. 



Perennis, longe repens, foliis in singulo culmo creberrimis dense fla- 

 bellato-distichis cinereo-tomentellis valde insignis, Culmi graciles (ad 

 20 cm alti), internodiis inferioribus valde abbreviaüs (ita ut folia fere in 

 flabellum expandi necesse sit). Yaginaî equilantes. compressée; laminée 

 lineares brèves (2 — 3 cm), rigidse, patulse, complicatee. Spicse 4 — 6, verd- 

 cillatse, sessiles, brèves (1,5 cm), sed crassee, conniventes : rhachis 

 tenuis, pubescens; spiculse dense imbricatse, biflorse cum rudimento glu- 

 maceo floris tertii; glumse steriles lanceolatse, acutœ, 1 — 3-nerves, floren- 

 tibus breviores, I™» quam Il^a duplo brevior. Glumse florentes insequales, 

 inferior late elliptica, acuüuscula, bidentata, inter dentés mucronato-aris- 

 tata, compresso-carinata, 3-nervis, ad carinam nervosque marginales 

 longe pectinato-ciliata, superior inferiore conspicue minor, obovata, obtu- 

 sissima, mucronulata, glabra; palea utriusque floris obovato-oblonga 

 binervis, carinis ciliolata, flores ambo hermaphroditi. Rudimentum floris 

 tertii fertilibus duplo brevior, uniglume, obovatum, Iruncatum, muticum, 

 glabrum. 



Mossamedes : in maritimis inter Mossamedes et Rio Bero, 20. April 

 1882, leg. Höpfner (Num. 78). 



Species valde insignis, nulli notae arctius afflnis. 



Willkommiia Newtonii HACK. 



Annua. Culmus erectus filiformis basi ramosus, circ. 35 cm altus, 

 Folia brevissima, lanceolata (1—1 V2 cm longa, 2—3 mm lata), inferiores 

 patenti-hirsuta ; laminse grosse ciliatae, ciliis verrucis fultis, folii supremi 



