140 



trorso ad basin lisso, extus undique spinis pla- 

 niusculis echinato, glabriusculo, spiculis ple- 

 rumque ternis subbreviore; ilosculo neutro uni- 

 paleaeeo. 



Hab locis siccissimis graminosis reg. medias 

 in insulis Ghathani et Charles abundans. (Ipse). 



Culmi cicspitosi, simplices, a basi breviter geniculata ad- 

 scendenles, erecti, pedales vel ultra, compressiusculi, glabri, flavo- 

 nitentes; nodi angusli obscuri. Folia obscure viridia, anguste lin- 

 earia, patentia v. subflaccida, acuta, plana, utrinque secus nervös 

 et margines scabra; vaginas longre, convolutae, glabrae, strialoe, 

 internodiis paullo breviores; ligula brevis, truncata, fusco-fulva, 

 longe albo-pilosa. Spica solitaria, 2 — 4 uncias longa, subcurvata, 

 rachis angulato-marginata, scabra. Spicularum glomeruli inferio- 

 res breviter pedicellati, superiores omnino sessiles. Involucrum 

 violaceum, ovato-conicum, dorso convexum, introrsum ad basin 

 bifidum, ibique vulgo lacinia subbifida parva clausum, undique 

 praesertim au tern basin versus aculeis planiusculis acutissimis tri- 

 angulariler elongatis erectiusculis creberrime armatum, apice irre- 

 gulariter et levifer sinuato 3 — 5 fidum, intus et ore pubescens, 

 ceterum glabriusculum. Gluma exteriör ovata, acutissima, floscu- 

 los aequans, hyalina, nervis 3-viridibus notata; gluma interiör 

 exteriori aquilonga, acuta, iminervia. Flosculus sterilis neuter uni- 

 paleaceus, vel masculus bipaleaceus, paleis hyalinis, filamentis an- 

 theris duplo longioribus. Flosculus hermaphroditus: palea exteriör 

 dorso subconvexo-3-nervia, basi costis 2 minutis notata, apice 

 viridulo subcuspidata, marginibus interiorem binerviam hyalinam 

 amplectens, Iactea. Lodiculae nullae vel obsoletae. 



68. C granuf.aris Ands. : culmo erecto, foliis sea- 

 bris, vaginis pilosis: involucro apice subin te- 

 gro, introrsum ad basin lisso, dorso tubcrcu- 

 lato costato vel lreviusculo, spiculas iucludente. 

 Hab. locis graminosis declivibus reg. inferi- 

 oris ins. Chatham (Ipse). 



Culmi caespitosi, simplices, a basi erecti v. subexcurvati, pe- 

 dales, angulati, scabriusculi; nodi angusti infuscati. Folia erecla, 

 medio latiora (2 lin.), superne scabra pilisque raris parce con- 

 spersa; vaginae subdilatatte, ad basin fissae, plerumque apertae, va- 

 lide striaUc, lateribus dense et longe hirsutie; ligula brevissima 

 longe pilosa. Spica lusco-brunnea, valde tenuis, strictissima; ra- 



