Monographia Juncacearum. 251 
Juncus 
Descr. Perennis, dense vel densissime caespitosus, viridis. Radices teretes, 
diam. 0,5—2,5 mm, pallide fuscae, vix fibrosae. Rhizoma horizontale, crassum (diam. 
ca, 5—8 mm) internodiis nunc brevissimis, nunc distinctis. Caules erecti, teretes 
50—100 cm alti et ultra, diam. 4,5—3,5 mm, tenacissimi, in statu sicco valleculati, me- 
dullä continuä parenchymatosä repleti, basi tantum foliati, scapiformes. Folia basilaria 
infima cataphyllina, sequentia laminifera ; vaginae angustae, ferrugineae (rarius castaneae), 
nitidae, valleculatae, margine submembranaceae, superne attenuatae; lamina teres, cauli- 
formis, tenacissima, pungens, caule brevior, in statu sicco valleculata. Inflorescen- 
tia pseudolateralis, magna, supradecomposita, anthelata, capitulifera, 6—40, raro usque 
16 cm, in var. arabico 20 cm longa; rami erecti, primanielongati; capitula 2- usque 3-flora, 
segregata vel plus minus aggregata. Bracteae infimae duae erectae frondosae teretes, 
pungentes, infima elongationem caulis simulans, plerumque inflorescentiam longe supe- 
rans ; ceterae hypsophyllinae ; bracteae florum late ovatae, aristato-mucronatae, strami- 
neae, late membranaceo-marginatae, floribus ca. dimidio breviores. Flores ca. 3 mm 
(in var. arabico usque 5 mm) longi, plerumque pallidi. Tepala pallide viridi-straminea, 
glumacea, firmiora, marginibus membranaceis, externa lanceolata acuta sive mucronata, 
interna breviora, obtusa, latius marginata, Stamina 6, tepalis internis paullo breviora; 
filamenta basi dilatatà connata, linearia brevia; antherae lineares flavidae, filamentis 
duplo longiores et ultra (in var. arabico triplo longiores et ultra). Pistillum perigonio 
longius ; ovarium trigono-ovatum, rubescens sive pallide purpureum; stilus cylindricus, 
ovario ca. duplo longior, purpureus; stigmata erecta, purpurea. Fructus perigonium 
aequans sive paullo superans, ovato-prismaticus (in var. arabico elongato-ovato-conicus, 
sensim attenuatus, perigonium plus quam dimidio superans), trigonus, obtusiusculus, 
brevissime vel distinctius vel longius mucronatus, nitidus, stramineus, pallide ferrugi- 
neus, sive ferrugineus, trilocularis. Semima obliqua, obovata, badia vel ferruginea, apice 
longius, basi breviter albo-caudata, costata, indistincte reticulata, 0,75—4.2 mm longa, 
(nucleus caudá apicali duplo usque triplo longior). 
Var. J. maritimus Lan. var. arabicus P. Ascurnsox et Fr. Bucnenau in: 
Ep». Boissier, flora orientalis, 1882, V, p. 354, ubi nomen: J. deserti CARUEL 
in sched. pl. exsiec., laudatur. Planta elata (usque 150 cm alta), glauca; 
inflorescentia magna, usque 20 em longa, rami erecti elongati; capitula se- 
gregata; flores pallidi magni (cum fructu maturo ca. 5 mm longi); antherae 
magnae, filamentis ca. triplo longiores; fructus elongato-ovato-conicus, sen- 
sim attenuatus (vix mucronatus), perigonium plus quam dimidio superans, 
pallide stramineus. — Nieder-Egypten, Sinai-Halbinsel, Oasen der Iybischen 
Wüste, Palästina; Persien (HacsskwkecuT); Affghanistan (ArrcumvsoN). — 
Vide: P. AscuznsoN et G. Scuweiseurrn, Illustration de la Flore d'Égypte, 
in: Mém. de l'Instit. Egypt., 1887, IL, p. 155. — Eine ausgezeichnete Form. — 
Eine verwandte von Scumrer bei Dschedda gesammelte Pflanze besitzt klei- 
nere, dunkler gefärbte Früchte und bildet so einen Übergang zur Hauptform. 
J. maritimus Law. var. australiensis Fr. Bucurwav. Planta usque 
100 em alta; capitula plus minus aggregata; flores parvi, ca. 2,5 mm longi, 
intense colorati; antherae filamentis triplo vel quadruplo (raro duplo tantum) 
longiores; fructus trigono-ovatus, perigonium vix superans, nitidus, casta- 
neus, sive ferrugineus; semina breviter caudata. —West-Australien im Ge- 
biete des Swan-River (Preiss, Drunnonp); Süd-Australien: am Torrens-Flusse 
(Fern. v. Mur" ` Tasmania (LispLey, Guns, OLprienn); Port Jackson (Fern. 
Bauer) ; Nov. Holl. (Sieger). Sr. Kirpa, Austral. felix (? F. v. MüLLeR, v. Lin- 
Botanische Jahrbücher. XII. Bad. 17 
