OF THE MATTO GROSSO EXPEDITION, 1891-92, 507 
OLyRm sp. nimis imperfecta, ex affinitate O. latifolie, Linn. Erecta, elata, foliis 
brevissime petiolatis, ovato-lanceolatis, caudato-acuminatis, basi impariter rotundatis, 
brevissime cordatis, 4:0-5'0 cm. lat., usque ad 17:0 em. long. ; vaginis arcte applicatis, 
crebre striatis, glabris; ligula ut in O. latifolid ; paniculis terminalibus abbreviatis, 
pubescentibus, ramis inferne masculis, superne femineis ; spiculoram masc. valvulis 
ignotis, spiculorum fem. glumis brevibus, ovatis, acuminatis, rarius breviter aristato- 
caudatis nec ultra 1:0 em. long., glumá superiore 5-nervi. valvulis —. 
Hab. Reperi jam valvulis orbam in sylvà primeevá inter Santa Cruz et Campos de 
Tapirapuan mens. Sept. (N. 403.) 
Ab 0. latifoliá, cujus fortasse mera varietas, distat preesertim foliis longioribus 
latioribus et glumis brevioribus. [Bras. Or., Goyaz, Amazonia, Guiana, Ind. Occ. | 
PARIANA, sp. nov.; culmorum fertilium vaginis subinflatis, spicis erectis, flosculorum 
masculorum pedicellis involucrantibus, puberulis, inferne albido-pilosis ; glumis late 
triangulari-lanceolatis, breviter acuminatis, pedicellis paullo longioribus a valvulis 
oblongis acutiusculis tertià vel quartà parte superatis; reliquis ignotis. 
Hab. Floret ad Santa Cruz mens. Dec. (N. 540 a.) 
Ab affini P. zingiberind, cujus specimina ante oculos habui in Herb. Kew. asserv. 
CAppun n. 710, Poiteau sine no.) abhorret preesertim glumis latioribus, breviter acuminatis, 
et valvulis minoribus. 
The species of Pariana with simply scapose inflorescences do not occur in Eastern 
Brazil where the genus is represented by only two species belonging to the group with 
foliate inflorescence. [ Amazonia, Guiana. | 
LUZIOLA PUSILLA (sp. nov.) (Tab. XXXVII. figg. 1-8); culmo pro genere brevi, erecto, 
vix ultra 10:0 cm. alt., a foliis superato, subterete, gracillimo, obsolete puberulo ; 
vaginis pubescentibus, striatis; ligulá membranaceá, exsertá, subulatà, acuminata ; 
foliis anguste linearibus, acuminatis, obsolete scabriusculis; paniculá masculá ignotá ; 
paniculis omnibus mihi obviis femineis, contractis vel rarius subpatulis, axe 
eracillimo, glabro, ad axillas breviter piloso, spiculis parvis linearibus, acutis, axibus 
tenuibus flosculo «equilongis vel longioribus fultis, rectis vel parum curvatis; valvulis 
membranaceis, oblongis, valvulà inferiore superiore obtusa 8-nervi paullo breviore 
et truncatà et ll-nervi; caryopside ovoideo-subglobosá, obtusá, in longitudinem 
costulato-striatá, glabra. 
Hab. Crescit ad Santa Cruz, ubi mens. Dec. flores masculos inveni. (N.760.) Itaque 
vidi in Hb. Kew. specimina ejusdem speciei in Guianá Britannicá a Parker lecta. 
Rhizoma abbreviatum, sat tenue, radices graciles paucas sustinente. Culmi herbacei, 
seepe foliis duplo breviores, virescentes. Vaginz foliis sepius 11—2-plo breviores, 
explanatee circa 02 cm. lat., infimz culmum vix amplectentes; ligula erecta, 
01-0:2 em. long.; lamina HER plerumque 5:0-10:0 em. long., vix usque ad 
0:3 em. lat. (modica 0:22 cm.), margine plus minus undulata, oe Paniculze 
rami modici 15-20 em. long. Spicule graciliter pedunculate, 0:4-0:45 em. long. 
Stigmata alba, 013. cm. long. Squamule. obovate, obtusissimz, 0:02 em. long. 
Caryopsis brunea, 0°17 cm. long., styli reliquiis coronata. 
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