EB 
3,5—3,75 mm longis et 1,5—3 mm latis; gluma I. spieulam ad !/, ae- 
quante, anguste rotundata, 3-nervia; gluma II. sequentem aequante, 
ex elliptico acuta, 9-nervia, in superiore parte venis transversis fe- 
nestrata; gluma III. priori isomorpha sed 5 — 7-nervia, in axilla 
paleam floris abortivi magnam, lateacutam, dissite obscureque pilosulam, 
fovente; palea inferiore quam glumae praecedentes breviore, ex elliptico 
acutiuscula nec mucronata, rigide coriacea fere ossea, alutacea vel 
lutescenti-straminea, minute sed bene rugulosa, nitidula, glabra, paleam 
superiorem late acutiusculam, dorso bene carinato-marginatam superante. 
Americae sept. civit. unitae, Florida in Key-insulis (OURTISS 
n. 3606**, 5431, 6705). 
Panicum echinulatum Mez nov. spec. — Perennis, culmis de- 
cumbentibus et e nodis radicigeris late repens, florifera vix 0,3 m alta, 
gracilis. Folia vaginis bene carinatis, margine optime et saepius quasi 
pectinatim pilosis, dorso glabris vel subglabris; ligulis brevissimis, 
dense pilosis; laminis suberectis, lanceolatis vel ovato-lanceolatis, basi 
bene rotundatis subamplexicaulibus, apice breviter acutis, planis vel 
complicatis, rigidulis, nervo medio manifesto praeditis, margine zona 
perinsigni incrassata pallida auctis, prope basin dense ciliatis superne 
scabris, utraque facie glabris, ad 25 mm longis et 7 mm latis. Culmi 
florigeri paullo ascendentes, angulati, praeter nodos pilosos glabri 
laevesque. Inflorescentia pauciflora, suberecta, quaquaversa, longiuscule 
stipitata folia multo superans, densiuseule 2-pinnatim panniculata 
subscoparia, pallide virens, ad 60 mm longa, densiuscule pinnatim vel 
subdigitatim e spieis 2 — 3 erectis, subaequilongis, secus rhachin in 
spiculam vigentem desinentem, complanato-angulatam, undulatam, 
praesertim superne puberulam distiche subseeundeque laxiuscule spicu- 
ligeris composita; spiculis omnibus singulis, subsessilibus, striete erectis, 
ex elliptico longe acutissimeque acuminatis, pallide virentibus, haud 
manifestius venosis, pilis patentibus echinaceis, ad 3,5 mm longis 
et 3,5 mm latis; gluma I. parva spiculam vix ultra !/, aequante, ovato- 
squamiformi, asymmetrice acutiuscula, glabra, 3-nervia; gluma II. 
sequentem aequante, validissima fere coriacea, ex elliptico longe acu- 
minata, toto dorso pilis partim tubereulatis echinulata, 11-nervia; 
gluma III. priori isomorpha sed dorso non nisi superne prope marginem 
paullo nec tuberculatim pilosa, 5-nervia, in axilla paleam floris 
abortivi conspicuam, minute dissiteque pilosulam, acutam fovente; palea 
floris herm. inferiore quam glumae praecedentes satis breviore, elliptica- 
apice trituberculatim rotundata, perrigida fere ossea, dense punctulato- 
rugulosa, nitidula, paleam superiorem late acutiusculam, dorso carinato, 
marginatam superante, 
