Gloxinella

Full name and orig. publication: Gloxinella (H.E.Moore) Roalson & Boggan, Selbyana 25(2): 227 (19 Dec. 2005)

Etymology: Diminutive form of the generic name Gloxinia

Synonyms: Kohleria sect. Gloxinella H.E.Moore (1954).

Infrafamilial position: Gesnerioid Gesneriaceae (Gesnerioideae) - Gloxinieae.

Description: Terrestrial, rather weak-stemmed perennial herbs with scaly rhizomes (often produced at the tips of long stringy rhizomes. Stem erect, indumentum villous, without uncinate hairs. Leaves opposite, isophyllous, petiolate, with 6-8 pairs of veins. Flowers axillary solitary, epedicellate and ebrbracteolate, showy. Sepals free. Corolla alvender, campanulate, limb of subequal lobes. Stamens 4; anthers coherent. Nectary annular, sometimes slightly 5-lobed. Ovary inferior; stigma broadly stomatomorphic or obscurely bilobed. Fruit an ovoid to elliptic fleshy capsule, dehiscing along the dorsal side and splitting the hypanthium to the base. Seeds numerous, minute, rhombic to broadly ellipsoid, almost as broad as long.

Chromosome number:  2n = 26.

Species names (incl. publication and synonyms): See Skog, L.E. & J.K. Boggan. 2005: World checklist of Gesneriaceae: http://persoon.si.edu/Gesneriaceae/Checklist.

Type and only species: Gloxinella lindeniana (Regel) Roalson & Boggan

Distribution: For long, the species was known only from cultivated material of unknown origin, but recently it has been re-discovered in Peru (Cajamarca).

Ecology: Probably as in Gloxinia.

Notes: G. lindeniana has bounced between Gloxinia and Kohleria for a long time. In the latter genus it was accommodated in a distinct section (K. sect. Gloxinella H.E.Moore). According to molecular data, it fits to neither of those genera. Therefore, the section was raised to generic rank (Roalson et al. 2005a,b, Boggan 2006).  

Selected references: Roalson, Boggan, Skog, Zimmer, Taxon 54(2): 389-410 (2005a), molec. syst.; Roalson, Boggan, Skog, Selbyana 25(2): 225-238 (2005b), tax.; Boggan, Gesneriads 56 (3): 26-32 (2006), surv.

Bibliography: See Skog, L.E. & J.K. Boggan. 2005. Bibliography of the Gesneriaceae. 2nd edition: http://persoon.si.edu/Gesneriaceae/Bibliography.

Illustrations:

Gloxinella lindeniana (Regel) Roalson & Boggan, type and only species
[formerly Gloxinia lindeniana (Regel) Fritsch]

Gesneriads 56 (3): 29 (2006), phot. M. Riley

 



last modified: 2007-01-05