Fig. 91. J. megacephalus' Cnrtis. A Caulis florens. 

 B Pars laminae a latere visa. C Pars laminae aliae 

 longitudinaliter sectae. JD Flos in anthesi. 2?Sepalum 

 externum cum stamine. F Sepalum internum. G Pi- 

 stillum. H Flos cum fructu. J Fructus semimatu- 

 rus. K Fructus maturus apertus (valvulae discretae, 

 angustae, marginibus involutis, apice cohaerentes). 

 L Semen maturum. — A — Q sec. Engelm. Herb, 

 norm. n. 68 ; H, K; L sec. Curtis n. 4153. Origin. 



Fr. Buchenau. — Juncaceae. 



Var. Pohlii (Steud.) Buchenau 1. c. (1879) 

 398, t. 4 (anal.) et (1890) 320. — J. Pohlii 

 Steud. Synops. pl. glum. II. (1855) 302. — 

 Inflorescentia magna, supradecomposita; rami 

 primani erecti, anthelati; flores ca. 4 mm longi; 

 tepala interna ca. J / 3 breviora. 



101. J. brachycarpus Engelm. in Trans. 

 St. Louis Acad. II. (1868) 467. — J. crypto- 

 carpus Bebb in litt. Engelm. ibid. ; Engelm. in 

 As. Gray, Manual, 5. ed. (1868) 542; Buchenau 

 in Flora (1886) 165 et Monogr. Juncac. (1890) 

 321; Cöville in Gontrib. Un. St. Nat. Herb. II. 

 (189 4) 448; Britt. and Brown, 111. Fl. N. Unit. 

 St. I. (1896) 393, f. 950 (minus bona); Chap- 

 man, Fl. South. Un. St. 3. ed. (1897) 521; 

 Small, Fl. Southeast. Un. St. (1903) 260. — 

 Rhizoma: internodia usque ca. 8 mm longa, diam. 

 ca. 3 mm. Gaules erecti, graciles, laeves, diam. 

 0,8 usque- 2 mm. Folia caule breviora; vagina 

 laxiuscula; lamina teres, recta, rarius curvata. 

 Inflorescentia erecta, simplex usque decompo- 

 sita, umbelloides, rarius anthelata; capitula 1 

 usque 10, multiflora, diam. ca. 8 mm. Flores 

 ca. 4 mm longi, straminei; tepala lanceolato- 

 vel lineari-subulata, interna multo breviora; stam. 

 3, tepalis externis plus quam dimidio breviora; 

 antherae oblongae, filamentis ca. triplo breviores; 

 stilus brevissimus. Fructus tepalis externis ca. 

 duplo brevior, triquetro-ovatus, faciebus impres- 

 sis, breviter mucronatus, stramineus; semina 

 ca. 0,35 mm longa, oblique-oblonga , vitellina, 

 regulariter reticulata. 



Provinz des Mississippi- Gebietes 

 und der südatlantischen Unionsstaaten: 

 Feuchte Stellen in lichten Gehölzen und auf Wie- 

 sen: Ohio, Michigan, Illinois und südlich durch 

 das Mississippithal bis Louisiana und Texas, 

 östlich zerstreut bis Florida, Georgia und Süd- 

 carolina. 



102. J. megacephalus M. A. Gurtis in 

 Boston Journ. Nat. Hist. I. (1835) 132 t. Coville 

 in Bull. Torr. Bot. Club XXII. (1895) 303. — 

 /. eehinatus Elliott, Sketch bot. S. Garol. and 

 Georgia I. (1821) 410 pr. pte. — Prob. J. poly- 

 eephalus var. a. Gay in Laharpe, Monogr. Jone. 

 (1827) 140. — /. scirpoides var. eehinatus 

 Engelm. in Trans. St. Louis Acad. II. (1868) 

 468; Buchenau, Monogr. Juncac. (1890) 323. — • 

 J. scirpoides var. carolinianus Coville in Mem. 

 Torr. Bot. Club V. (1 89 4) 107; Britt. and Brown, 

 111. Fl. N. Un. St. I. (1896) 394, f. 953; Small, 

 Fl. Southeastern Un. St. (1903) 259; Harper 

 in Bull. Torr. Bot. Club XXX. (1903) 326. — 

 Gaules erecti, rigidi, 40 usque 100 cm alti, 



