MALME, XYRIS L., UNTERGATTUNG NEMATOrUS (SEURERT). 59 



26. X. commixta Malme n. sp, 



X. simulans Alb. Nilsson, Stud. Xyrid. (1892), p. 47 (p. p. min.). — Malme, 

 Xj'rid. Exped. I Kegnell. (189C), p. G (quoad specim. e Måtto Grosso). 



Dense csespitosa, rhizomate crasso, brevi, subverticali, 

 radices graciles, filiformes emittente. Folia ensiformi-linearia, 

 25 — 35 cm longa, circiter 2 mm lata (inferne angustiora), 

 acuta V. acmninata, eciliata, laevia glaberrimaqiie, nervis 

 submarginalibus aliquantulum incrassatis, in vaginam sensim 

 abeuntia 5 — 7 mm longam, ligula parva munitam, superne 

 lamina baud latiorem, omnino eciliatam, subopacam, saepe 

 purpureo-violascentem, basi valde dilatatam, obscure casta- 

 neam v. fuscam nitidamque, Scapi graciles, subteretes, paul- 

 lulum uni- v. bicostati, 60 — 75 mm alti, 0,6 — 1 mm crassi, 

 Iseves glaberrimique, haud nervoso-striati, basi vagina circüm- 

 dati arcta, 10 — 18 cm longa, in mucronem brevem, compla- 

 natum, incurvatum sensim excurrente, eciliata, inferne pur- 

 pureo-violascente et subnitida. Spica satis pauciflora, ellip- 

 soidea v. obovoideo-ellipsoidea, 7 — 9 mm longa, 3,.t — 4,5 mm 

 crassa; bractese infimse ovatse, 5 — 4 mm, rarius usque 5 mm 

 longae, acutse, indistincte carinatae, subhyalino-marginatae, 

 laceratse, intermediae obovatae v. ellipticae, vulgo 6 — 7 mm 

 longae, 3,5 — 4 mm latae, cochlea tae, apice rotundatae et mem- 

 brana albido-subhyalina, lacerata, vix 1 mm lata terminatae 

 (qua delapsa, saepe subtruncatae), ceterum integerrimae, casta- 

 neae, v. ferrugineo-castaneae, nitidae, ecarinatae, area dorsali 

 nulla. Sepala lateralia libera, inaequilatera, leviter curvata, 

 lanceolata, 5 — 6 mm longa, 1 mm lata, obtusa, ala carinali 

 sub apice sepali subnulla, ceterum satis angusta, fere inde a 

 basi pilis breviusculis ciliata. Petala flava, obovato-elliptica, 

 circiter 5 mm longa, 3 mm lata. Staminodia bibrachiata, 

 brachiis satis brevipenicillatis. Antherae lineari-oblongae, cir- 

 citer 2 mm longae et 0,6 mm latae, basi haud latiores, fila- 

 mento lineari duplo longiores. Stylus fere ad medium trifi- 

 dus; stigmata subcapitata. 



Minas Geraes: Caldas (Regnell III: 1266 p. p. min.)- 



Sä o Paulo: Villa Franca (Riedel). 



Matto Grosso: Santa Anna da Chapada, in paludibus 

 altis (Malme n. 1428, II: 3318). 



In Xyrid. Exped. I. Regnell. (1896) brachte ich die Santa 

 Anna-Pflanze sowie die aus Cachoeira (Rio Grande do Sul) 



