Ericaceae-Neotropical Blueberries
James L. Luteyn and Paola Pedraza-Peñalosa
The New York Botanical Garden

GUYANA

Home

List of Species

      1.  Ovary superior;  petals distinct ........................................................................ Bejaria sprucei
      1.  Ovary inferior;  petals connate.
           2.  Fruit a thin-walled, fragile berry;  pedicels continuous with calyx.
                3.  Corolla tiny, less than 4 mm long;  leaves suborbicular-elliptic, (15-) 20-40 mm
                      long;  pedicel 5-9 mm long ................................................ Sphyrospermum ellipticum
                3.  Corolla larger, 4-8 mm long (if 4 mm long, then pedicel >15 mm long).
                     4.  Stamens 4;  leaves suborbicular to oblong-ovate, (7-) 9-15 (-18) mm long .............
                          ................................................................................... Sphyrospermum buxifolium
                     4.  Stamens 4-5 or 8-10;  leaves ovate to lance-ovate, (15-) 20-25 (-30) mm long ......
                          ................................................................................. Sphyrospermum cordifolium
            2.  Fruit a thick-walled, coriaceous berry;  pedicels articulate with calyx.
                 5.  Tubules of the anthers dehiscing extrorsely ............................ Notopora schomburgkii
                 5.  Tubules of the anthers dehiscing introrsely (or slightly latrorsely).
                      6.  Tubules abruptly narrowed and 5-6 times longer than thecae;  flowers 5-6-merous ...
                            .................................................................................... Ceratostema glandulifera
                      6.  Tubules equal to or only slightly narrower than thecae and less than 2 times the
                            thecae;  flowers 5-merous.
                            7.  Stamens dimorphic, with either filaments or anthers, or filaments and anthers
                                 of alternate lengths.
                                 8.  Filaments equal and connate entire length.
                                      9.  Inflorescence fasciculate, 1-6--flowered;  rachis to 0.5 cm long;  plants
                                           coarse, leaves to 30 x 12 cm ..................................  Satyria carnosiflora
                                      9.  Inflorescence racemose, elongate, 4-20--flowered, rachis 0.6--4 cm
                                           long;  plants more delicate, leaves to 17 x 7 cm .......... Satyria panurensis
                                 8.  Filaments alternately unequal and distinct.
                                      10.  Anthers alternately unequal;  stamens usually as long as corolla,
                                             without disintegration tissue on abaxial side;  anthers dehiscent by
                                             elongate clefts;  flowers subtended by large, showy bracts ...........
                                             ............................................................................ Cavendishia callista
                                      10.  Anthers equal;  stamens 1/3-2/3 length of corolla, with white
                                             disintegration tissue on abaxial side;  anthers dehiscent by somewhat
                                             elongate to oblique pores;  flowers without large, showy bracts.
                                             11.  Calyx hirsute or hispid .......................................... Orthaea hispida
                                             11.  Calyx glabrous.
                                                    12.  Calyx hypanthium basally apophysate ....  Orthaea apophysata
                                                    12.  Calyx hypanthium not basally apophysate.
                                                           13.  Corolla 28-33 mm long with lobes 6-8 mm long ....
                                                                  ......................................................  Orthaea venamensis
                                                           13.  Corolla less than 25 mm long and lobes ca. 2.5 mm long ...
                                                                   .....................................................  Orthaea merumensis
                            7.  Stamens isomorphic, with filaments and anthers of equal lengths.
                                 14.  Corolla fleshy and coriaceous, cylindric, usually greater than 12 mm long;
                                         calyx lobes usually inconspicuous, often merely apiculate;  leaves pinnately
                                         veined or plinerved.
                                         15.  Anther thecae strongly granular;  tubules rigid;  connectives alternately
                                                spurred, these rarely obscure.
                                                16. Leaves thin-membranaceous, the inner pair of lateral nerves arising
                                                      up to 0.5 cm above the lamina base;  petioles, pedicels, and rachis
                                                      thin at anthesis ............................................  Psammisia urichiana
                                                16.  Leaves thick-coriaceous, the inner pair of lateral nerves arising
                                                       1.5-5 cm above the lamina base;  petioles, pedicels, and
                                                        rachis thick and of a coarse appearance at anthesis .................
                                                        ..............................................................  Psammisia guianensis
                                           15.  Anther thecae smooth;  tubules flexible; connectives without spurs.
                                                  17. Flowers 6-10 in short racemes;  pedicels 12-25 mm long;
                                                        corolla 7-11 mm long;  leaves usually ovate, 7-14 cm long ........
                                                         .................................................................. Thibaudia formosa
                                                 17.  Flowers 2-6, subfasciculate;  pedicels 5-15 mm long;  corolla
                                                        8-14 mm long;  leaves usually suborbicular, 3-10 cm long
                                                         .................................................................... Thibaudia nutans
                                    14.  Corolla thin and membranaceous, urceolate or campanulate, less than
                                           13 mm long; calyx lobes (although often small) conspicuous and well
                                           defined;  leaves pinnately veined.
                                           18.  Calyx enclosed by two large, imbricate bracteoles which surmount
                                                  the pedicel;  flowers subsessile and usually solitary .........................
                                                  ..................................................................  Disterigma humboldtii
                                           18.  Calyx never enclosed by the bracteoles which are usually minute
                                                  and at the pedicel base;  flowers pedicellate and racemose or
                                                  several in a fascicle.
                                                  19.  Inflorescence fasciculate or subfasciculate;  corolla
                                                         campanulate, bright red .......................  Vaccinium euryanthum
                                                  19.  Inflorescence racemose;  corolla cylindric to cylindric-
                                                         urceolate, white ....................................  Vaccinium puberulum

List of Species

 

Back to Top

Befaria sprucei Meissner

Cavendishia callista J.D.Sm.

Ceratostema glandulifera Maguire, Steyerm. & Luteyn

Disterigma humboldtii (Klotzsch) Niedenzu

Notopora schomburgkii Hook.f.

Orthaea apophysata (Griseb.) A.C.Sm.
Orthaea hispida A.C.Sm.
Orthaea merumensis Maguire, Steyerm. & Luteyn
Orthaea venamensis Maguire, Steyerm. & Luteyn

Psammisia guianensis Klotzsch
Psammisia urichiana (Britton) A.C.Sm.

Satyria carnosiflora Lanj.
Satyria panurensis (Benth. ex Meissner) Benth. & Hook.f. ex Niedenzu

Sphyrospermum buxifolium Poeppig & Endl.
Sphyrospermum cordifolium Benth.
Sphyrospermum ellipticum Sleumer

Thibaudia formosa (Klotzsch) Hoer.
Thibaudia nutans Klotzsch ex Mansf.

Vaccinium euryanthum A.C.Sm.
Vaccinium puberulum Klotzsch ex Meissner

Back to Top