Monographie der Turneraceen. 



111 



latiora, reticulato-striata, hilo semigloboso-conico, chalaza nigrescente prominente, arillo 

 unilaterali usque ad apicem ascendente. 



Habitat in Brasiliae prov Goyaz in campis lapidosis (nuperrime crematis) prope 

 Chapaddo de S. Marcos m. Aug. flor. et fruct : Riedel n. 2539. 



25. Turnera trigona Urb. caulibus 30—45 cm longis, 1,5 — 2,5 mm 

 crassis, viridi-brunnescentibus, supra basin subteretibus, caeterum nervis 

 e folio medio descendentibus nunc trigono- nunc subtrialato- angularis 

 glabris; foliis sessilibus linearibus, antice sensira angustatis, inferioribus 

 2,5 — 3,5 cm longis, 1,5 — 3 mm latis, 8 — 20-plo longioribus quam latiori- 

 bus, erectis, internodia duplo et ultra superantibus, superioribus sensim 

 decrescentibus et remotioribus, internodiis aequilongis v. brevioribus, 

 floriferis 10 — 3 mm longis, margine recurvato v. revoluto integris v. 

 saepius antice obsolete v. manifestius serratis, praeter pubem tenuissi- 

 mam ad basin plerumque obviam glabris; calyce 5 — 6,5 mm longo; 

 ovario 18 -25-, raro — 40-ovulato ; seminibus obovatis v. obovato-ob- 

 longis, plus minus arcuatis, inferne attenuatis, nunc tuberculato-asperatis. 



Caules simplices virgati v. interdum hinc illinc ramosi, plernmque tenuissime 

 punctulati. Folia ramosinervia, nervis supra prominulis, basi v. supra basin subtus 

 ad marginem glandulis 1 + 1 v. 2 -f 2 parvis v. amplis, brunneis v. nigrescentibus 

 ornata. Flores dimorphi, in apice caulium capitato-aggregati, posterius inferiores 

 laxiores et plus minus remotiusculi; pedunculi 2—1 mm longi, toti adnati; prophylla 

 lineari-subulata v. oblonga, 2—3,5 mm longa, 0,4—1 nun lata. Calyx extrinsecus 

 breviter et adpresse pilosus, in 2 / 5 — '/s i n tubum infundibuliformi-cylindricum 

 v. obconicum, intus superne pilosulum coalitus, lobis lanceolatis v. anguste oblongis, 

 apice obtusiusculo subcucullatis v. breviter mucronatis, 3-nervibus. Petala calyceni 

 parte 1 / s — a /s superantia, „lutea", supra basin atro-violacea, 6,5—8 mm longa, vix 

 2 mm lata, oblonga v. anguste oblonga, basi parum angustata, glabra. Filamenta 

 tubo calycino 0,4—1 mm longe adnata, glabra, basi non v. vix incrassata, longiora 

 4 mm, breviora 3,5 mm longa; antherae clausae elliptico-rectangulares v. ovato-oblongae 

 1,5—2 mm longae, 0,7 — 0,8 mm latae, 2— 2 l / 2 -pl° longiores quam latiores, truncatae v. ob- 

 tusiuscule apiculatae, dorso in '/* — Ys z\t affixae, basi in l / 6 — */, long, emarginatae, 

 defloratae apice recurvatae. Styli colorati glabri, longiores 5—6 mm longi, antheras 

 1,5 — 2 mm superantes, apice 2 mm longe 6 — 12-partiti, ramulis filiformibus, breviores 

 2 mm longi, ab antheris parum distantes, flagello vix 1 mm longo. Ovarium conicum 

 brevissime hirtellum. Fr u c tus globuloso-conicus, obtusiuscule acuminatus, 4,5 — 5,5 mm 

 longus, 4,5 — 5 mm diametro; valvae dorso brevissime pilosae, intus rufo-punctatae et 

 lineolatae, glabrae. Semina 2 — 2,3 mm longa, 1 mm crassa, reticulato-striata, brunnea, 

 hilo conico minimo parum prominente, chalaza prominula, vix concaviuscula, arillo 

 unilaterali ad apicem ascendente, albido-flavescente. 



Habitat in Brasilia, prov. non cognita, in campis editis siccisque prope Alegres 

 m. Sept. flor. et fruct.: Riedel n. 2608, prope Corgo-Pian: Pohl n. 2176 ; in prov. 

 Goyaz locis humidis prope Arrayas m. Mart. flor. et fruct.; Gardner n. 3751. 



26. Turnera Guianensis Aull, caulibus 20—40 cm longis, 

 0,8 — 1,5 mm crassis, ad basin brunnescentibus, caeterum viridibus, an- 

 gulato-striatis glaberrimis, inferne ob folia decidua mox denudatis ; foliis 

 subsessilibus v. usque ad 4 mm longe petiolatis linearibus v. angustissime 



