172 P 4 N I c E A E. Cimhrus. 



Spiculuc itilni Involucrum 1 — 5, scssiles, lanccolalo-ovalac, hemioloijamac. Clu- 

 viae 2 vel, inferiore supressa, 1, membranaccae , aculae: inferior jjI. niin. 

 parva, 1-, superlor flosculis paulo magisve brcvior, 3 — 5-nervis. Flosculus 

 injt-iior ncuter vcl masculus, membranaceus, 1 — 2-valvis: valvula inferiorc 

 acuta 1. acuminata, 5 — T-nervi. Flosc. superior hcrmaphroditus, subcliar- 

 taccus, lanccolato-ovatus, acutus 1. acuminalus: vaUuIa inferior superiorcin 

 arclc obvolvens. — Involucrum spiculam 1. spiculas cingens, conslans e laciniis 

 coriaceis, rarius simplicibus, plcrumque sctoso-aut spinoso-partitis, liasi in di- 

 scum turbinatura solidum connalls: iacinulis deorsum aculcolatis: cxlimis mullo 

 brevioribus, setiformibus , plerumquc patcntissiniis; inlerioribus scnsim cras- 

 sioribus, spiculas non nimis supcranlibus, plcrumque infcrne villosis (unica vel 

 aliquot intcrdum paulo prolractioribus). 



Lodicuia nulla. 



Orarium oblongum, glabrum. S/jli infcrne connali, 2. Stign.ala plumosula. 



Slamina o. Anlhcrae lincarcs. 



Fruclus caryopsis oblonga, depressiuscula , intra valvulas clausas libera, ebcrbis, 

 scutcllo suo duplo vel tertiam quarlamvc partem" longior. 



a) Ifwolucelli laciniis parlilis., deorsum aculeolatis; gluma inferiore manijeslu; 

 Ligula ciliari. 



Cenchrus myosuroicles Hb. ct Kth. Capitulis thyrsi erectis; Involucclli 1-flori Inci- 

 niis omnibus setaccis, fcre ad basin usque libcris, crcctis, ebcrbibus. 

 Cenchrus myosuroidcs Hb. et Kth. Gen. ct sp. I. tab. 55. R. et S. II. p. 257. — 



An huc C. idopccuroidcs Presl. rel. Haenk. I. p. 3n? 

 Penniselum myosuroides Sprgl. S. V. 1. p. 305. 

 V. sp. Chil. 

 Culmus dicitur erectus ct orgyalis. Vaginae cum Foliis angusto-linearibus, 

 subinvolulo-compressis, scabris, glabrac. Thyrsus cyllndricus, satis angustus, 

 densus, 5-poIIicaris. Gluma inferior flosculis triplo brevior, 1-, superior iis- 



