70 ARKIV FÖR BOTANIK. BAND 13. N:0 3. 



suffulcientes) oblongae, 7 — 8 mm longae, 2,5 — 3 mm Jatse, 

 cochleatse, apice obtusissimae, coriacese, ferruginese v. dilute 

 castanese, subopacse, integerrimse, superne parce longeque 

 ciliatse, sub apice obtuse carinatse, area dorsali nulla. Sepala 

 lateralia libera, subgequilatera, fere recta, oblongo-lanceolata, 

 circiter 7 mm longa^ 2 — 2,2 5 mm lata, obtusa, ala carinali in 

 partibus tertiis infima summaque angustissima eciliataque, in 

 media latiore et serrulato-ciliata, 



Brasilia: neque loco neque collectore indicatis (herb. 

 Mus. Petropol.). 



Die systematische Stellung dieser in mehreren Hinsichten 

 sehr eigentümlichen Spezies ist unklar. 



4L X. nigricans Alb. Nilsson (1892). 



Stud. Xyrid., p. 60 et tab. V, fig. 1. 



Minas Geraes: Serra de Itacolumi (Riedel n, 458) 

 (Sellow; Glaziou n. 15513). 



42. X. hystrix Seubert (1855). 



XV, p. 219 et tab. XXVIII, fig. 2. — Al 

 Xyrid. (1892), p. 61. 



Minas Geraes: Tejuco in Serro Frio (Martius). 



Flor. brasil. fasc. XV, p. 219 et tab. XXVIII, fig. 2. — Alb. Nilsson, Stud. 



Xyrid. (1892), p. 61. 



X. Stirps X. schizachnes. 



Species elatae, csespitosse, scapis aliquantulum compressis, 

 50 — 75 cm altis, foliis ensiformi-linearibus, vulgo 20 — 40 cm 

 longis, 2 — 4,5 mm la tis, utraque acie pilis brevissimis ciliatis 

 V. scabridulis, vagina tertiam fere partem folii occupante, 

 superne lamina haud latiore. Spica satis multiflora, subglo- 

 bosa V. obovoideo-subglobosa, 8 — 12 mm longa, bracteis infi- 

 mis brevibus, intermediis ellipticis v. obovato-ellipticis, 7 — 8 

 mm longis, 3 — 4 mm latis, apice rotundatis et membrana 

 ferrugineo-purpurascente, lacerata et plus minusve squarrosa 

 limitatis, area dorsali nulla. Sepala lateralia libera, lineari- 

 lanceolata, 6 — 7 mm longa, ciniter 1 mm lata, ala carinali 

 pilis brevibus ciliata. 



