Monographia Jüncacearum. 373 
Juncus 
p. 326 (sub. nom. J. fusco-atri Scungm.). Fr. Buchenau, krit. Verzeichnis 
aller Juncaceen, 1880, p. 98. Fr. Bucnenau, eine verkannte deutsche 
Phanerogame, in: Ber. deutsch. bot. Gesellsch., 1883, I, p. 487—493. 
Descr. Perennis, laxe caespitosus, intense viridis. Radices capillares et fili- 
formes, diam. usque ca, 0,8 mm, pallide fuscae, subfibrosae. Rhizoma horizontale, 
plerumque breve, haud longe durans, diam. plerumque usque 2, raro usque 3 mm. Caules 
erecti, teretes vel compressi (raro inferne ancipile-compressi!,, laeves, etiam superne 
foliati, medullá continuá parenchymatosá repleti, serius cavi, in var. genuino minus 
stricti, 10—25 cm alti, in var. affini stricti, 40 usque 40 (raro 50) cm alti, in var. fusco- 
atro stricti, usque 70 cm alti. Folia basilaria cataphyllina, vaginiformia, usque ca, 5 cm 
longa, pro paite aristato-mucronata, saepe rubescentia sive fusca, supremum eorum saepe 
laminigerum; caulina 2—4 frondosa, caule breviora; vagina angustata, rotundata vel 
compressa (raro dorso carinata), superne in auriculas duas obtusas breves producta ; 
lamina subteres vel compressa, unitubulosa, diam. 1 usque 2 mm, septis completis mani- 
festis intercepta, apiceacuta. Inflorescentia erecta, composita usque supradecomposita, 
umbelloides vel anthelata; rami stricti, erecti vel subpatentes, elongati; capitula pauca 
usque numerosa, parva, diam. 3 usque 4 (rarius 5) mm, 3- usque 6- (rarius 8-) flora, ple- 
rumque castanea, sive fusco-atra, in var. affini plerumque pallida. Flores 2 usque 
2,5, cum fructo maturo 3 usque 3,5 mm longi. Tepala glumacea, aequilonga, ovata, 
obtusa, externa fere semper in apice dorsi (raro ex apice ipso, mucronafa, interna dis- 
tincte membranaceo-marginata, omnia castanea, ferruginea vel fere atra, in var. insigni 
pallida. Stamina 6, tepalis !/; usque La breviora; filamenta linearia, alba; antherae 
lineares, flavae, filamenta subaequantes, Pistillum exsertum; ovarium trigonum, 
ovato-pyramidatum; stilus cylindricussed ovario brevior; stigmata longa, erecta, pallida. 
Fructus trigonus, oblongus, obtusus, mucronatus, perigonium distinctius superans, 
unilocularis, nitidus vel lucidus, superne plerumque fere ater. Semina 0,5 usque 
0,6 mm longa, anguste vel oblongo-obovata, apiculata, vitellino-ferruginea, rectangu- 
lariter reticulata, areis transversim lineolatis. 
Var. J. alpinus Vu. a genuinus Fn. Bvcurvav, krit. Zusammenstell. 
d. europ. Juncaceen, in: A. Excren, bot. Jahrb., 1885, VII, p. 166. Humilis, 
10 usque 25 em altus. Caules graciles, minus stricti, saepe curvati. In- 
florescentia composita, saepe umbelloides, rarius anthelata, rami erecti. 
Capitula pauca, semper intense colorata, saepe nigra. J. mucroniflorus DE 
CramviLLE, Manuel d'herbor. en Suisse et en Valais, 1811, p. 104. J. ustula- 
tus D. H. Horrr, Anleit. Gräser zuzubereiten, 1819, p. 30. J. rarıflorus 
C. J. Hırıman, Skandinaviens Flora, ed. I, 1820, p. 444. J. alpestris C. J. 
Hanrnas, ibid. J. nodulosus G. WantENBERG, Flora upsaliensis, 1820, p. 144. 
J. nodulosus Wunga. Q rariflorus EL. Fries, Nov. flor. suec., 1828, p. 94. 
J. Fischeri N. Turczanınow, pl. exsicc. 1831, et Flora baicalensi-dahurica, in: 
Bull. Soe. Natur. Mosc., 1855, III, p. 303 (transitum fert ad var. insignem 
Fries). J. alpinus Vit. B uniceps et y rariflorus C. J. Hartman, l. c., ed. 
VII, 1858, p. 240. 
J. alpinus ViLL. var. B fusco-ater RxrcugNsAcu in sched. Altior; caules 
usque 70 cm alti. Inflorescentia decomposita vel supradecomposita, magna ; 
rami erecto-patentes. Capitula numerosa, fusco-atra, rarius pallidiora. 
J. fusco-ater ScunkBER, in: SCHWEIGGER et Körte, Flora Erlangensis, 1811, 
