118 



Fr. Buchenau. — Juncaceae. 



10 



u /< 



\ x 



12. J. Dudleyi Wiegand in Bull. Torr. Bot. Club XXVII. (1900) 524, XXX. (1903) 

 446, — j m tenuis aut. amer. ante 1900, pr. pte. — Caules erecti, stricti, rarius cur- 

 vati, 30 usque fere 100 cm alti, diam. 0,75 usque fere 2 mm, sul- 

 cati. Folia arcte vaginantia, caule ca. dimidio breviora, lunulata, 

 diam. usque 1,2 mm. Inflorescentia anthelata, angusta; flores in 

 turmas 3 usque 6 collecti; bractea infima frondosa, inflorescentiam 

 plerumque superans. Flores viridiusculi, 4 usque 5 cm longi; tepala 

 lanceolato-subulata, late membranaceo-marginata, interna breviora; 

 stam. 6, tepala dimidia fere aequantia; antherae et filamenta sub- 

 aequalia; stilus perbrevis. Fructus late ovatus vel fere sphaericus, 

 \ix trigonus, obtusus, breviter mucronatus, tepalis squarroso-distan- 

 tibus paullo brevior; pericarpium tenue; semina ca. 0,4 mm longa, 

 oblique-oblonga, brevissime apiculata. 



Gemäßigte Länder vom atlantischen bis pacifischen Nord- 

 amerika: Auf feuchtem Boden in offenem Gelände von Maine und 

 New- York westlich bis Washington und zum Saskatchawan ; im Innern 

 südlich bis Missouri, Colorado und Arizona. 



Nota. Species praecipue auriculis cartilagineis, luteo-fuscis et flori- 

 bus turmatim approximatis praeclara. 



13. J. interior Wiegand in Bull. Torr. Bot. Club XXVII. (1900) 

 516 et XXX. (1903) 446. — /. arizonicus var. curtiflorus Wiegand 

 ibid. 518 ab auctore ipso, 1. c. XXX. (1903) 446 cum /. inferiore 



Fig. 64. June. Dud- conjungitur. Small, Fl. southeastern Un. St. (1903) 256. — Caules 

 leyi Wiegand. Vagina erecti, strictissimi, sulcati, 50 usque 100 cm alti, diam. ca. 2 mm. 

 folii cum auriculis Folia longe, sed laxe vaginantia, caulibus ca. 2 / 3 breviora, recta, 

 et basi laminae. — planiuscula vel involuta, 1 usque 1,3 mm lata. Inflorescentia magna, 

 f!',^™ e ?i tlCa ^t°^ G niultiflora, 3 usque 10 cm longa, anthelata; rami erecti, brachiati 

 vel denique in drepana 2- vel 3-flora desinentes; bracteae 2 fron- 

 dosae, inflorescentiam superantes. Flores 4 mm longi, straminei; 

 tepala subaequilonga, lanceolato-subulata , late membranaceo-margi- 

 nata; stamina 6, tepala dimidia aequantia; antherae oblongae*), fila- 

 mentis breviores; stilus brevissimus. Fructus trigono-ovatus, obtusus, 

 brevissime mucronatus, firmus; semina 0,35 usque 0,5 mm longa, 

 breviter apiculata. 



Nordamerika: Aus dem Waldgebiet bis in das Prairie- 

 gebiet. In offenen Gehölzen und auf trockenen Wiesen von Illinois 

 (Engelm. hb. norm. n. 21, pr. pte.) bis Wyoming, Colorado und 

 Arizona. 



Nota. J. interior, arizonicus et neo-mexieanus valde affines et 

 fortasse varietates ejusdem speciei sunt. 



14. J. arizonicus Wiegand in Bull. Torr. Bot. Club XXVII. 

 (1900) 517; Small, Fl. southeast. Un. St. (1903) 257. — Caules 

 erecti, stricti, sulcati, 40 usque 70 cm alti, diam. 1 usque 1,5 mm. 

 Folia laxe vaginantia, caule y 2 usque 2 / 3 breviora, plana, ca. 1 mm 

 lata. Inflorescentia anthelata, aperta; rami erecti, flores modice 

 distantes; bractea infima frondosa, inflorescentiam longe superans. 

 Flores 4 usque 5 mm longi ; tepala erecta, lanceolato-subulata, aequi- 

 longa, late membranaceo-marginata ; dorso viridia, lineis 2 vitel- 



Fig. 65. June. interior j inis ( ser i us straminea); stamina 6, tepala dimidia aequantia; an- 



q . agina o ii ^g^g ova t a e , filamentis breviores**); stilus brevissimus. Fructus 

 cum auriculis et basi ' ' ' 



laminae. — PI. au- 



thentica; Wyoming, *) In plantä arizonica (Knowlton n. 234) ovatae, breves. 



Av. Nelson, n. 3982. **) Cel. Wiegand p. 512 recte antheras breves nominat, p. 517 contra 



— Origin. naturam filamentis fere aequilongas. 



Ludlowville 

 York, lecta 



