PROF. OLIVER ON NEW PLANTS FROM RORAIMA. 270 



155. Vincetoxicum (Ortiiosia) hirtellum, Oliv., sp. nov. ; volubile, caulc gracili pilis 

 brevibus subpatentibus liirto, foliis ovali-oblongis rigidiuseule apieulatis, marginibus 

 revolutis, supra hirtellis in sicco rugulosis, subtus prsecipue in costa pilis patentibus 

 birtis, cymis scssilibus v. brevissime pedunculatis pauci- v. pluri-iloris foliis brevi- 

 oribus, floribns subsessilibus v. pedicello calyce vix longiore, corolla? lobis angustis 

 intus hirsutis, coronse segmentis 5 basi in annulo brevissimo continuo insertis 

 lineari-lanceolatis gynostegium fere sequantibus, stigmate obtuso. 



Roraima. 



Folia §— | poll, longa ; petiolus -^ poll, longus v. brevior. Flores £ poll, longi 



Very much resembles in general facies Ditassa pauciflora. 



147. Nephradenia linearis, Bentb. ? 

 113. Curtia (Sclmebleria tenuifolia, Don). 5100 ft. 

 47. Lisianthus AMffiNUS, Miq. 5400 ft. 



306. Lisianthus Imthurnianus, Oliv., sp. nov. Gracilis, glaberrirnus, caule inferne 

 folioso tcretiusculo internodiis folio brevioribus utrinque lineis elevatis duabus 

 notatis, foliis coriaceis obovatis ellipticisve obtusis v. obtusiusoulis niargine anguste 

 revolutis triplinerviis, pedunculoelongato cymis 3-2-floris, floribus longe pedunculatis, 

 calyce (j-§ poll, longo) 5-fido, lobis ovato-lanceolatis acutiusculis, corollas (2-poll.) 

 tubo leviter dilatato, limbi lobis oblongo-ovatis acutis, filamentis elongatis gracilibus 

 glabris inclusis, antheris oblongo-ellipsoideis inappendiculatis. 

 Roraima, ledge and summit. 



Caulis 1-pedalis erectus v. basi decumbens. Folia §-f poll, longa, basi in petiolum 

 angustata, J~§ poll. lata. Pedunculus communis 3-6 poll, longus ; bractese superiores 

 lineares v. ovales. Discus hypogynus. 



In our specimens tbe limb of the corolla looks as though it might remain straight or 

 even slightly incurved in flower. 



188. Lisianthus aff. L. macmntho, sed calycis lobis acuminatis corollas tubum requan- 

 tibus. Upper slope. 

 3. Heliotropium aff. H. fruticoso, conf. H. strlctissinium = &c\\omh\i. 185, 2S3, and 

 573. Konkarmo. 

 24. Solanum, an S. Convolvulus, Seudtn. ? (inadequate). Arapoo R. 



210. Melasma ? spathaceum, Oliv., sp. uov. ; scabrum, foliis snboppositis v. inferioribus 

 alternis brevissime petiolatis ovato-ellipticis basi rotundatis v. leviter cordatis 

 dentatis supra scabris, floribus pedunculatis in axillis superioribus pedunculis folio 

 suboequilongis apice bibracteolatis, bracteolis linearibus v. oblanceolatis basi 

 angustatis, calyce alabastro acuminato florifero antice fisso spathaceo, corolla exserta 

 leviter incurva tubo supcime leviter dilatato, limbi brevis lobis subasqualibus, lobo 

 postico truncato emarginato, latcralibus obtusissimis, antico obovato-rotundato 

 bifido. 

 Roraima, upper slope. 



