248 Fr « Buchenau. — Juncaceae. 



m i x ta. — J. cephalotes Thunb. Prodr. fl. capens. I. (1794) 66 et Fl. capens. I. (1823) 337, 

 pr. pte. — J> capensis var. latifolius E. Mey. Syn. June. (1822) 48, in Linnaea VII. 

 (183«) 129 et aut. fere omnes sequentes, nee J. capensis Thunb.; Laharpe, Monogr. 

 Joncees (1827) 143. — J. luzuloides Hb. Steud. t. Schult, fr. in Roem. et Schult. 

 L. Syst. veget. VII. 1. (1829) 242. Kunth, Enum. pl. III. (1841) 343; Buchenau in 

 Abh. Nat Ver. Brem. IV. (1875) 466, t. 10; Buchenau, Monogr. June. (1890) 429; 

 Buchenau in Pringsheim's Jahrb. XXIV. (1893) 391 t. 11, f. 25 (flos); Engler in Pflanzen- 

 welt Ost-Africa's C. (1895) 137; Baker in Fl. capens. VII. (1897) 27. — Planta valida, 

 laxe caespitosa, 25 usque 80 cm alta. Caules adscendentes vel erecti, in statu sicco 

 sulcati, diam. 1 usque 6 mm. Folia (v. p. 14, Fig. 10 B) late linearia, apice mucro- 

 nato-acutata; auriculae desunt. Inflorescentia magna, ereeta, anthelata, bracteas longe 

 superans; capitula 12- usque 20-flora. Flores plerumque ca. 5 mm longi; tepala 

 plerumque subaequilonga , late membranaeeo-marginata externa lanceolata, in aristam 

 brevem castaneam acutata, interna oblonga, obtusissima vel emarginata, stamina tepalis 

 ca. ^breviora; antherae lineares, filamentis ca. duplo longiores; stilus longus; Stigmata 

 longissima. Fructus perigonio brevior, trigono-prismaticus, longe mucronatus; semina 

 ca. 0,6 mm longa, oblique ovata, apiculata, ferruginea. 



Var. typicus Buchenau, 1. c. (1890) 430. — Viridis. Inflorescentia plerumque 

 supra-decomposita, capitula diam. 8 usque 9 mm; tepala aequilonga vel subaequilonga, 

 ferruginea, raro castanea. 



Var. luteseens Buchenaul. c. (1875) 466. — Tota planta luxurians, usque 80 cm 

 alta; folia usque 60 cm longa et 22 mm lata, luteo-viridia. Inflorescentia magna, diffusa; 

 capitula usque 140, magna, diam. 10 usque 14mm; flores usque ca. 7 mm longi. 



Var. aristatus Buchenau, 1. c. (1890) 430. — Viridis. Capitula pauca, majora, 

 diam. 10 usque 12mm; aristae tepalorum externorum longiores, tepala interna con- 

 spicue superantes. 



Auf Gebirgswiesen an Bächen und feuchten felsigen Orten: Südafrika bis Pondo- 

 land und Transvaal, im Osten wahrscheinlich bis Usambara; Insel St. Helena. Die 

 beiden Varietäten im Caplande. 



Nota 1. Turiones parvi depauperati angustifolii (e gemmis retardatis: — Schlafaugen — 

 Orientes) = J. capensis Thunb. ß. minimus, pollicaris Lah. 1. c. in herbariis diversis inter spe- 

 eimina J. cephalotis conservantur. 



Nota 2. Flores J. lomatophylli et capensis interdum a fungo endophytico {Ustilago? 

 capensis M. Rees) destruuntur (v. Buchenau, 1. c. (1875) 473. 486, t 14. 



183. J. Engleri Buchenau n. sp. — Caules, folia et inflorescentia ut in J. loma- 

 tophyllo (sed lamina 3 usque 9 mm tantum lata). Capitula minora, plerumque 5- 

 usque 1 0-flora. Flores minores, vix 3 mm longi. Tepala aequilonga, externa sensim 

 acutata, fere nigra, pallide marginata, interna obtusa vel obtusissima, late membranaeeo- 

 marginata, dorso castanea, lineis lateralibus fere nigris; stamina 6, tepala dimidia non 

 aequantia; antherae fdamentis subaequilongae; ovarium trigono-ovatum ; stilus perbrevis; 

 Stigmata longissima. Fructus perigonio brevior, late ovatus vix trigonus, brevissime 

 mucronatus, fulvus; semina 0,5 mm longa, oblique -obovata, castanea, indistinete 

 sculpta. 



Ostafrikanisches Waldgebiet: West-Usambara ; an feuchten Stellen der Berg- 

 wälder in 14— 1600 m Höhe (Englern. 1060, 1409; Holst n. 334 a [?J, Blätter fehlen). 



Nota. Medium tenet inter J. lomatophyllum et J. Bachiti; ab illo praeeipue differt flori- 

 bus minonbus, stilo perbrevi, fruetu brevissimo mucronato, ab hoc statura multo majore, foliis 

 latis, antheris longioribus. 



§ 64; v. p. 239. 



Perennes, caespitosi. Caules erecti ; scapiformes. Auriculae desunt; lamina plana 

 Tel planiuscula, graminea. Capitula pauci-usque multiflora. Stamina 3 vel 6. Fructus 

 trilof-ulares. 



