56 ARKIV FÖR BOTANIK. BAND 17. N:0 7. 



inferne sensim attenuata 10 mm longa, superne 6 mm crassa, 

 obtuse 5-costata. — Morne de la Hotte in montibus occid. 

 Ma Blanche in saxosis er. L400 m alt., m. Aug. flor. et fruct.: 

 n. 555. 



Obs. Habitu Rhytidophyllo subsimilis, sed .'^ine dubio 

 Gesneria. 



Rhytidophyllum bicolor Urb. (spec. nov.). Herba per- 

 ennis. Rami juniores obtusanguli, pilis brevissirais pauci- 

 articulatis dense vestiti, sub petiolis obtuse decurrentibus 

 glabriores. Stipulae nullae. Folia petiolis 5 — 8 mm longis, 

 junioribus sicut costa media subtus resinam exsudantibus, 

 anguste usque oblongo-lanceolata, inferne sensim angustata, 

 basi ima obtusiuscula, antice longe acuminata, 10 — 35 cm 

 longa, 1,5 — 6 cm lata, nervo medio supra non prominente, 

 lateralibus utroque latere 25 — 35, tenuioribus et brevioribus 

 intermixtis, supra parum v. vix prominulis, subtus crassi- 

 uscule prominentibus et reticulato-anastomosantibus, margine 

 toto dense et inaequaliter denticulata, denticulis obtusiusculis, 

 supra in sicco olivacea et pilis incrassatis valde abbreviatis 

 densissimis scabriuscula, subtus praesertim ad nervös et ner- 

 vulos brevissime pilosa et rubescentia, chartacea v. subcori- 

 acea. Inflorescentiae pedunculis 15 — 25 cm longis, inferne 

 1,6 — 2 mm crassis rubris, brevissime pilosulis, cymose divisae 

 9 — I4-florae; prophj-lla lanceolato-linearia v. sublinearia, 

 axibus plus minus sursum adnata, infima 5 — 7 mm longa, 

 caetera minora; pedicelli primarii plerumque gemini 15 — 18 

 mm longi, sequentes sensim breviores. Calycis tubus late 

 turbinatus, brevissime, pilosulus; lobi triangulari lanceolati 

 obtusiusculi 3 — 3,5 mm longi. Corolla rubro-aurantiaca 17 

 mm longa, pulverulenta, sub medio incurva, in statu com- 

 presso 5 mm lata; lobi semiorbiculares, tubo cr. 3-plo bre- 

 viores. Antherae ovatae 3 mm longae. Stigma peltatum 

 quam stylus dimidio latius. Capsula ^/a infera, hoc loco 

 semiglobosa v. semiovalis 6 — 7 mm diametro brevissime pilo- 

 sulo-scabriuscula non carinata. Semina lanceolato-linearia 

 recta v. arcuata cr. 0,8 mm longa. — Morne de la Hotte in 

 declivibus sept.-orient. in montibus .sylvaticis cr. 800 m alt., 

 m. Jun. flor. et fruct.: n. 193. 



Obs. Inter species hujus generis (fere omnes satis arcte 

 affines) foliis subtus rubescentibus statim recognoscendum. 



