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



© Elatiores, scapis ultra 25 cm 

 altis. Spica 7 — 10 mm longa, 

 circiter 4 mm crassa. — — — 



Stirps (XXIV) X rigidcE p. 93. 



©ffi Humilis, scapis 8 — 11 cm altis, 

 foliis subcapillaribus, circiter 0,2 

 mm latis. Spica 2,5 — 4 mm 

 longa, 1 — 1,5 mm crassa. — — 



i/ — X. Grisebachii (species recedens in stirpe X. guia- 



nensis) — — — — — — — — — — p. 50. 



oo Folia ensiformi-linearia, vulgo ultra 

 1 mm. lata. 



© Ala carinalis sepalorum latera- 

 lium nuda v. superne lacerato- 

 fimbriata v. nonnihil fimbriato- 

 ciliata. 



$ Folia vulgo 10 — 20 cm longa, 

 1,5 — 2 mm lata, subtiliter 

 transverse rugulosa. Spica 

 3 — 5 mm crassa, bracteis 

 ferrugineis. — — — 



— — — X. vacillans (species recedens in stirpe X. trachy- 



phyllce) — p. 89. 



?? Folia 35—50 cm longa, 2 

 — 3 mm lata, omnino laevia. 

 Spica circiter 8 mm crassa, 

 bracteis spadiceis v. taba- 

 cinis. — — — — — — — 



— — — X. lucida (species recedens in stirpe X. rigidce) p. 98. 



© © Ala carinalis inde a basi ciliato- 



scabridula. 



— X. guaranitica (species nonnihil recedens in stirpe 



X. blepharophyllcß) — — p. 68. 



ßß. Folia in vaginam sensim abeuntia superne la- 

 mina vix V. hand latiorem. 

 aaa. Sepala lateralia apice v. ala carinalis superne 

 villosa. 

 + Folia teretia. 2 — 3 mm crassa, v. leviter 

 complanata et tantum usque 1 mm lata 

 (saltern superne Isevia), 



