Monographia Juticacearum. 363 
Juncus 
aber Exemplare von einer dieser beiden Arten mit Quastenbildung, welche durch den 
Stich von Livia Juncorum entstanden ist. 
Nota 6. Die Blüten von J. acutiflorus sind meistens rostfarbig, wührend die der 
normalen Formen von J. lampocarpus mehr oder weniger kastanienbraun gefärbt sind. 
Nota 7. Den Bastard J. acutiflorus><lampocarpus siehe bei J. lampocarpus. 
107. J. atratus A. Krocker, Flora silesiaca, 1787, I, p. 562. Caespi- 
tosus, opaeo- viridis. Caules 50 usque 120 em alti, teretes vel subcom- 
pressi. Lamina recta, strieta, eylindrico-prismatica, angulosa, hexangula 
vel heptangula, diam. 3 mm, septis externe submanifestis intercepta. 
Inflorescentia supradecomposita, rami omnes evoluti, erecti vel patentes. 
Capitula hemisphaerica, diam. ca. 5mm, 6- usque 10-flora, nigra vel 
castanea (rarissime pallidiora). Flores ca. 3, eum fructu maturo 3,5 mm 
longi. Tepala aequilonga (vel interna paullo longiora), longe acuminata, 
apice vix curvata. Fructus perigonium conspicue superans, e basi tri- 
gono-ovatä abrupte in rostrum longum attenuatus, castaneus vel raro 
ferrugineus. 
Litt. J. melananthos L. Reıcnexsach, Flora Germ. excurs., 1830, I, 
p. 96. €. S. Kontu, Enum. plant., 1841, III, p. 327 (sub. J. acutifloro). 
J. septangulus W. L. Pererwann, Beitr. zur deutschen Flora, in: Flora, 1841, 
I, p. 361. A. Neitreicn, über J. atratus Krocker, in: Schriften zool. bot. 
Ges. Wien, 1853, III, p. 123. 
Descr. Perennis, opaco-viridis, laxe caespitosus, caespites magnos formans. 
Radices filiformes (diam. usque 1 mm) fuscae, subfibrosae. Rhizoma horizontale, 
perdurans, diam. usque 5 mm (vel ultra ?). Caules erecti, usque inflorescentiam 50 
usque 120 cm alti, stricti, teretes vel subcompressi, laeves, etiam superne foliati, medullä 
continuá parenchymatosá repleti, serius cavi. Folia basilaria infima cataphyllina, 
opaca, fusca, supremum eorum et caulina 2 usque 3 frondosa; vagina longa, superne 
laxiuscula, dorso angulosa, superne in auriculas duas obtusas producta; lamina recta, 
stricta, cylindrico-prismatica, hexangula vel heptangula, mollis, laevis, diam. ca. 3 mm, 
unitubulosa, septis completis externe submanifestis intercepta, apice subulata, Inflores- 
centia erecta, supradecomposita, anthelata; rami omnes graciles, primani erecli, se- 
quentes erecto-patentes vel patentes; capitula discreta, hemisphaerica (diam. ca. 5 mm), 
pluri- (6- usque 10-) flora, nigra vel castanea, Bractea infima frondescens, parva, in- 
florescentiä multo brevior, ceterae hypsophyllinae, ferrugineae; bracteae florum ovato- 
lanceolatae, longe acuminatae, ferrugineae, sive castaneae, flore breviores, Flores ca. 
3, cum fructu maturo 3,5 mm longi, in anthesi plerumque nigri, serius castanei (raro 
pallidiores, ferruginei). Tepala glumacea, aequilonga, vel interna paullo longiora, ex- 
terna lanceolata, longe acuminala, interna ovato-lanceolata, longe acuminata, membra- 
naceo-marginata (externa interdum medio dorsi viridiuscula). Stamina 6, tepalis ca. 
1/4 breviora ` filamenta linearia, alba; antherae lineares, flavae, filamentis duplo longiores 
et ultra. Pistillum exsertum; ovarium trigono-ovatum, superne in stilum filiformem 
ovario saepe longiorem attenuatum ; stigmata longa, erecta. Fructus perigonium con- 
spicue superans, trigono-ovatus, lateribus planis, superne abrupte in rostrum longum 
attenuatus, unilocularis, nitidus, castaneus vel ferrugineus, basi pallidior. Semina 0,5 
usque 0,65 mm longa, gracilia, elongato-obovata, indistincte apiculata, basi distinctius 
stipitata, vitellino-ferruginea, regulariter reticulata, areis transversim lineolatis. 
Distr. zeogr. Auf sumpfigen Wiesen und in Brüchen: Rheinpfalz ; 
