341 



lino, nervis 3 apicem versus seiisim longius (im- 

 briato-setosis nervo media in aristulam quam ma- 

 xime brevem producto; valvula floris superioris 

 masculi interior e basi strumosa longiuscula convo- 

 lula vel ulriculoso - connata cuneata"sensim tumi- 

 dulo-dilatatä in lobos maynos oppositös apice ro- 

 tundatos aculeolatos , Herum emarginatos, (lodicu- 

 lae Nees) profunde lissa margine firmo nunquam 

 hyalino praeditu , uervis tribus Uorso acnleolatis 

 exarata, exterior minor eomplicato-ovata apicc pa- 

 rtim excisa aculeolato - limbriata, uervis binis late- 

 ral ibiis dorso ciliolatis carinata. 



Chloris petraea aiict. nonnull.? 



Patria. America septentrionalis , ubi ad Bio 

 Brazos legit Drummond. 



CJiaracterihus supra distinctiiis expressis a Gh. 

 petraea eerte difl'ert. 



29. Chloris {Euntaclips) .Swartzii n.sp. ; culmus 

 compressiis nusquant splendens geuiculato -adscen- 

 dens longissimus 2—3-pedatis , internodiis elonga- 

 tis nodis latiusciilis fuscis conjunctis articulatns 

 strictus glaucescens, ut iii specimine imperfecta vi- 

 detur modo praecedentis hasi prolifero-foliüsus ; fo- 

 lia diipln loiigiora circa 6- pollicaria glancescentia 

 flaccida, vagind applanato-compressa scd profunde 

 concava neque usque ad medium latitudinis con- 

 nata margiue laevissiina dorso scaliriuscula, ligulä 

 brevissima memhrauacea apice pnbescenti-ciliolata, 

 lamhiä e basi angustiore lineari- lanceolata obtusa 

 plana margine apice solum scabriuscula ; iuterno- 

 diuin fertile longissimum subpedale filiforme com- 

 pressmn strictum , raginä malto lonyiore arctius 

 amplectente in Iaminam brevem angustissimam mar- 

 gine dorsoque scabram basi coarctatam distinctam 

 exeunte apice solum scabriuscula usque lere ad ra- 

 cemos obtectum, racemis 3 — 4 (vel pluribus?) an- 

 gustioribus parallelo - erectis subduplo longioribus 

 ad latera glaucescenti-virent ibus neque fuscis alibi 

 brunneo-atris suprabipollicaribus vel brevioribus co- 

 ronatum ; rhacliis angusta scabra strictiuscula ca- 

 rinata glauca, basi fuscato-pubescens, apice spiculis 

 sterilibus solitariis pallidioribus terminata; spiculae 

 densissime iinbricatae pulclire unilateraliter biseriatae 

 subsessiles alternantes anguste cylindricae, aristis 

 parum longioribus oblique erectis appendiculatae, 

 biflorae ; glumae 2 inaequales ubique pellucide inem- 

 branaceae glauco-virides sub microscopio albidae 

 neque fuscae vix vel convolutae, inferior minor 

 anguste ovata apice angustiore obtusa vix vel ob- 

 solete eniarginata, dorso nervi unici carinati crassi 

 e basi usque ad apicem albide aculeato-scabra, su- 

 perior major ejusdem formae sed apice regulariter 

 lato-biloba excisa aculeolato-denticnlata, nervis bi- 

 nis pone nervum medium in aristulam brevissimam 



rcctam valdc aculcolatam |iroductiim evanidis haud 

 laleralibus dorso acnleolatis; valvula floris infe- 

 rioris feminci cxterior briinnco -atra basi setis al- 

 bidis adglntinatis barbata valde complicata carinata 

 multo lirmior late ovata, apice parum obtuse ex- 

 cisa eroso - denticulata tenerius membranacea hya- 

 lina, nervis aequaliter flmbriato-setosis, nervi« bi- 

 nis lateralibus supra basin usque fere ad apicein 

 fimbriatis , nervo medio jam e basi usque fere ad 

 aristulam quam maxime brevem fnsco - aculcolatam 

 fimbriato; valvula floris superioris masculi interior 

 e basi longiuscula strumosa convoluta vel utricu- 

 loso- connata cuneatä sensim tiimidulo - dilatata vel 

 pyriformis in lobos magnos oppositös apice rotun- 

 datos aculeolatos iterum emarginatos (lodiculaeNees) 

 profunde fissa, margine firmo nunquam hyalino prae- 

 dita , nerris binis lateralibus evanidis glabris, 

 nervo medio excurrente solum dorso aculeolato 

 exarata, exterior minor complicata- ovata apice pa- 

 rum excisa eroso - aculeolata, nervis binis laterali- 

 bus dorso ciliolatis carinata. 



Chloris petraea Swartz. Prodr. (1. Ind. occ. p. 

 25. — Schultesia petraea Spreng. Pngill. 2. no. 34. 



Patria. In Antillis, unde speeimen Domingense 

 Berteroauum Hb. Sprengelii possideo. 



Chlor, septentrionali proxima , sed characteri- 

 bus explicatis proeul dubio distineta. 



30. Chloris (_Euchloris~) subdol ichostaehya n. sp. ; 

 suhhumilis cum planta fertili pallescente vix peda- 

 lis; culmus tenellus fnliis gl'aucescentibus brevibus 

 angustissimis ad basin nodorum inferiorum disticha- 

 ceo-confertis fasciculatim foliosus, deenmbens re- 

 pens vel melius stolones pallescentes horizontales 

 atque assurgentes veluti prolifero-exserens, ad basin 

 fasciculi foliosi radices elongatas fibrillosas emit- 

 tens, cespitem itaque humilem sistens ; vaginae equi- 

 tantes maxime compressae membranaceae albescenti- 

 pallidae margine tenerrimae ubique laeves angustae 

 basi latiores subprofunde coneavae, ad ligulam bre- 

 vem pilosam coaretata pallide ochracea, in Iaminam 

 angustissimam linearem pro more complicatam ra- 

 rius plauiusculam rigidam obtusiusculam nunquam 

 subulatam glaucescentem margine dorsoque scabriu- 

 sculam patenti -ereetam vel fere horizontalem pro- 

 duetae; internodia compressa subaneipitia glaberri- 

 ma geniculato-articulata vaginas superantia, fertilia 

 omuinin longissima 3 — 4 -pollicaria, basi vaginä in 

 Iaminam longiuscnlam patentem producta fertili la- 

 xiuscule obteeta strieta: racemi 7—8 digitato-fasci- 

 culati patentes et erecti a basi seeundiflori lV 2 -pol- 

 licares pallescentes, rhachi ad infimam basin pu- 

 bescenti-hirta apicem versus scabra virente; spicu- 

 lae pallidae laxe seriatae alternae subsessiles biflo- 

 rae; glumae duae persistentes rigidae pallescentes 



