Monographia Juneacearum, 403 
Juncus 
156. C. S. kuer, Enum. plant., 4844, III, p. 357. J. Czetzii Fern. Schur 
in: Österr. bot. Zeitschrift, 1863, p. 114 (teste Senn ipso, in: Enum. plant. 
Transsilv. 4866, p. 684). 
Descr. Perennis, stolonifer; stolones ca. 5—8 (raro 40) cm longi. Radices 
capillares vel filiformes, diam. usque 0,75 mm, subfibrosae, dense velutinae. Caules 
erecti, teretes, laeves, 10—20 (raro 30, rarissime usque 50) cm alti, etiam superne foliati, 
diam. 4 usque fere 2 mm, medullä parenchymatosá serius evanescente repleti, denique 
cavi. Folia basilaria infima cataphyllina, sequentia frondosa, caulinum unicum fron- 
dosum; vagina longa, anguste marginata, superne sensim angustata, raro apice trun- 
cata; auriculae desunt; lamina plana vel canaliculata, pluritubulosa, supra cellulis 
tenerrimis instructa, usque 4 mm lata, superne sensim angustata, apice obtusiuscula. 
Inflorescentia terminalis, plerumque e capitulis 2—3 composita, umbelloides, in 
speciminibus parvis simplex. Bractea infima frondescens, inflorescentiam plerumque 
superans, secunda brevis, frondescens vel hypsophyllina. Capitula magna, hemi- 
sphaerica, diam. 42—46 mm, 3- usque 6- (rarius 8-)flora. Bracteae florum hypso- 
phyllinae, lanceolatae, acutae, floribus breviores. Flores magni, 4—5, cum fructu 
maturo 7—8 mm longi, distincte pedunculati. Tepala glumacea, aequilonga vel ex- 
terna longiora, lineari-lanceolata, externa acutata, interna obtusiuscula (sed ob margines 
involutos interdum acutissima), omnia castanea, apice membranacea, rarius pallida, 
Stamina 6, tepala subaequantia; filamenta filiformia, albida; antherae oblongae vel 
ovalae, filamentis pluries breviores. Pistillumexsertum. Ovarium trigonum, ovato- 
prismaticum, apice attenuatum ; stilus cylindricus, ovario ca. triplo brevior; stigmata 
longa erecta. Fructus perigonium conspicue (plerumque fere duplo) superans, tri- 
gonus, prismaticus, apice conicus vel obtusus, breviter mucronatus, triseptatus vel 
imperfecte trilocularis, nitidus, apice plerumque castaneus, basi pallidius, raro toto 
stramineus. Semina maxima, 2 usque 3 mm longa, scobiformia, albida, nucleo 
vitellino. 
Formae diversae. Formae secundum colorem florum: J. castaneus 
Su. a fuscus et 8 pallidus W. J. Hooker, Flora bor.-amer., 1840, II, p. 192. 
(var. B pallidus — »J. Lehmanni E. M. in Herb. Hookeri«). Forma pallida 
(floribus pallide fulvis) etiam in Transbaicaliä obvia. 
Distr. geogr. In der arktischen Zone weit verbreitet und von der- 
selben in allen drei Erdteilen auf den Hochgebirgen nach Süden vordringend: 
Island, Seandinavien, Schottland, Alpen, transsilvanische Alpen; Ural; 
Rocky-Mountains, Alaska, Unalaschka, Neufundland ; Altai, transbaikalische 
Gebirge; Turkestan , nicht bis zum Himalaya vordringend. 
Collect. Fries, hb. norm., II, 59 (!). FgLLMANN, 243 (!). ANDERSSON, 
lapp., 228 (!). Bakwrrz, europ., 5993 (I. Rercnexgaca, flor. germ. exsiec. 
207 (!). Sieger, austr., 102 (!). Horre, dec., 36. Fl. exs. austro-hung.. 
686 (0. Haut, Colorado, 560 (€). Parry, Rocky Mount., 358 (!). Macoun, 
Canad., 2703 (l). 
Icones. Taf. 2, Fig. 5: Laubblatt. — Rosrkovius, 1. c. Tab. 4, Fig. 4. 
J. E. Surri, English bot., 1804, XIII, Tab. 900 (vergl. auch W. Wirsow in: 
Hooxrm, bot. Miscellany, 1830, I, p. 86 und 1831, II, p. 445). Flora da- 
nica, 4808, VIII, 2, Tab. 1332 (tep. anguste-triangularia, longe-acuminata, 
fructus aequantia). J. Srurm, Deutschlands Flora, 4837, XVI, Heft 71. 
L. et G. Reicnexsacn, Deutschlands Flora, 1847, IX, Taf. 393, Fig. 868. 
26* 
