Tribe: Cymbidieae
Subtribe: Oncidiniiae
Etymology:
From Greek = Onkos.
Olof Swartz, in 1800, gave this name due to the small callus situated at the base of the lip which seams to be a wart, tumor, swelling, which in Greek is Onkos



Brazilian Sections


The key of sections is that presented by Karlheinz Senghas in his last work but the starting point was the key used by Guido Pabst and Dungst in "Flora Brasiliensis"l977.

The additions and new occurrence to Brazil and states are referred with a number which source is identified in the final of the article.

For further information about the book or magazine concerned, please, see the bibliography.

After the presentation of the key, we present a list of the species which are nowadays excluded from the genus.

The localization and the abbreviaton of the states are also presented at the end.




1 - Section cebolleta Lindl.
cebolleta Sw AC, AL (5-10), AM, BA, CE (5), ES, GO, MG, MS (9-11), MT (9), PA, PB (5), PE, PI, RR, RN (5), Argentina, Surinam, Venezuela, America Central, Mexico
jonesianum Rchb. f. BA (8), GO (8), MG, MS (9), MT(9), SP, TO (9), Paraguay, Argentina, Bolívia



2- Section Pulvinata Lindl.
divaricatum Lindl. ES, MG, RJ
harrisonianum Lindl. ES, MG, RJ, SP
pulvinatum Lindl. ES, MG, PR, RJ, RS, SC, SP, Paraguay
robustissimum Rchb. f ES (1), MG, RJ (6)
schunkeanum Campacci e Catharino ES (13)
sphefigerum Lindl. ES, PR, RJ, RS, SC (14)



3- Section Serpentia (Krzl.) Garay (l970)
scansor Rchb f. RO, Costa Rica, Bolívia, Venezuela (8)



4- Section waluewa (Regel) Schltr.
albini Schltr. PR
amictum Lindl. ES (1), MG, MS (9), RJ, SP, Paraguay
chrysorhapis Rchb. f. SC
coloratum Kön & Weinm ES (8)
cornigerum Lindl. ES, MG, PR, RJ, RS, SC, SP, Paraguay
cruciatum Rchb. f. MS (11), PR, RJ, RS, SC, SP
fimbriatum Lindl. ES (1) PR, RJ, RS, SC, SP, Paraguay
gilvum (Vell.) Pabst ES (1 - 9) Species dúbia
kautskyi Pabst ES
leinigii Pabst PR
lietzei Regel ES, PR, RJ (3), SP, Paraguay
polyodontum Krzl sine loco, species dubia
pyxidophorum Rchb. f. Brazil(?)
pubes Lindl. ES (1 - 8), MG, RJ, SP, Argentina, Paraguay (?)
remotiflorum Garay RJ (6)
riograndense Cogn MG, PR, RS, SC, SP, Argentina
silvanum P. Castro e Campacci BA (12)
truncatum Pabst, MG, RJ, RS
verrucosissimum Cogn ES, Argentina, Paraguay
waluewa Rolfe MS (11), RJ
widgrenii Lindl MG, RJ, RS, Paraguay
Natural Hybrid
Ornithocidum X roczonii Leinig PR (Ornithophora radicans X Oncidium riograndense Cogn.)


5- Section Rostrata Rolfe
ouricanense Castro & Campacci BA(12
trulliferum Lindl. ES, PR, RJ, RS, SC, SP


6- Section Heterantha (Lind.) Krzl.
heteranthum Poepp. & Endl PA, América Central (Costa Rica, Panamá), Guyana, Venezuela, Colômbia, Ecuador, Peru, Bolívia.


7- Section Rhinocerotes Garay & Stacy (l974)
longicornu Mutel ES, MG, PR, RJ, RS, SC, SP
macronyx Rchb. f. RS, SC, Argentina, Paraguay


8- Section paucituberculata Lindl.
aberrans Schltr PR
edwallii Cogn. ES, MG, MS (11), PR, RJ, RS, SC, SP
hians Lindl. MG, PR (6), RJ (3 e 6) , SP (6)
hookeri Rolfe MG, PR, RJ, RS, SC (6), SP (6)
kraenzlinianum Cogn ES (6), RJ (6)
loefgrenii Cogn. ES, MG, PR, RJ, RS, SC, SP
paranaense Krzl MG, MS (9), PR, RJ (6)RS, SC, SP (6), Paraguay
raniferum Lindl PE, RJ, SP (6)


9- Section Concoloria Krzl.
concolor Hook. MG, PR, RJ, RS, SC, SP (6)
dasytyle Rchb. f. RJ
gracile Lindl MG
ottonis Schltr MG(6), PR(6), RJ(6), RS(6), SC(6), SP (6)


10- Section Barbata Lindl. Ex Pftz
barbatum Lindl AL (5), BA, CE, ES (1)MG, PB (5), PE, RJ
chrysopterum (Lindl) Krzl. MT (?), Bolívia
ciliatum Lindl AL (10), BA, CE, ES, MG, PR, RJ, RS, SC, SP
cogniauxianum Schltr. PR, RJ, SC(14), SP(6)
croesus Rchb. f. ES, RJ(6 - 8),
eurycline Rchb. f. (?) (8)
fuscopetalum (Hoehne) Garay GO (6), MS (9), MT(9), PA (9)
longipes Lindl ES(6), MG, PR, RJ, RS, SC, SP
macropetalum Lindl DF, GO, MG, MS (11), MT, PA (2), SP, Paraguay
micropogon Rchb. f. BA, ES (1), RS, SC
psyche Schltr RS
unicolor Rolfe ES(6), RJ(6)
uniflorum Booth. ES(6), MG, PR(6), RJ(6), RS, SC, SP(6)
trichodes Lindl PA


11- Section Oncidium (= section planilabria Garay & Stacy)
phymatochilum Lindl BA (possivelmente), ES, MG, PE, RJ, SP , México, Guatemala
planilabre Lindl Brazil - sine loco, Nicarágua, Costa Rica, Panamá


12- Section crispa Rchb. ex Pftz
crispum Lodd. ES, MG, PR, RJ, SC(14), SP
gravesianum Rolfe ES, PB (5), PE, PR, RJ, RS, SC, SP
marshallianum Rchb. f. ES (1), MG, RJ
praetextum Rchb. f. ES, PR, RJ, SP
curtum Lindl ES (1 - 10), PR, RJ
enderianum Hort. RJ, SP (see the Considerations about the genus Oncidium)
forbesii Hook ES, MG, RJ, SP
gardneri Lindl ES, MG, PR, RJ, SP
imperatoris-maximiliani Rchb. f. RJ
mantini Godefr RJ
pectorale Lindl RJ, SC, SP
rivierianum St. Leg. Brazil sine loco
sarcodes Lindl ES (1) MG, PR, RJ, SP
zappii Pabst ES, RJ
Natural Hybrids
X colnagoi Pabst ES - O. zappii X O. gardneri var. caloglossum
X litum Rchb. f. - O. forbesii X O. crispum RJ (according to Carlos Eduardo de Britto it would be O. forbesii X O. gardneri)
X polletianum Rchb. f. RJ -Reichenbach described as a species and arose the hypothesis that it could be a hybrid between O. dasytyle and O. forbesii.
In "Flora Brasilienzis", it appears as a variety of O. gardneri (In Carlos Eduardo's opinion, it would be O. dasytyle X O.curtum)
X praestans Rchb. f. RJ - described as a species and arose the hypothesis that it could be a hybrid between O. daystyle and O. gardneri. In "Flora Brasilienzis", it appears as a variety of O. gardneri (To Carlos Eduardo de Britto Pereira it would be O. dasytyle X O. forbesii)
X punctatum Hort RJ .In "Flora Brasilienzis", it appears as a hybrid between O. forbesii and O. gardneri
X scullyi Pabst & Mello RJ - O. curtum X O. gravesianum
X stanleyi Rolfe sine loco - O. curtum X O. marshallianum
X wheatleyanum Gower RJ O. crispum X O. dasytyle


13- Section synsepla
bifolium Sims PR, RS, SC, Uruguay, Argentina, Bolívia
brunnipetalum Barb. Rodr. PR
chrysothyrsus Rbch. f. ex Warner Brazil
euxanthinum Rchb. f MG, SP (6)
flexuosum Sims AL (5 - 10), BA, ES, MG, PA, PE, PR, RJ, RS, SC, SP
isopterum Lindl MG, GO (possivelmente)
ghillanyi Pabst MG (possibly a different species, not a synonym of O. spilopterum, see "Considerations about the genus Oncidium"" and the interview)
maculosum Lindl MG, Paraguay
majevskyi Toscano & Castro ES - RJ
martianum Lindl MG, PR
paranapiacabense Hoehne SP
varicosum Lindl ES (1), SP, GO (6)
welteri Pabst ES, MG, RJ, SP
Note: Senghas considered O. spilopterum assigned in this section and not in Section Oblongata as Pabst & Dungs considered.


14- Section verrucituberculata
batemanianum Parm. GO, MG, RJ (3), Bolívia
blanchetii Rchb. f. BA, ES (1), MG, PE, PR, RJ, SC, SP, Bolívia
chapadense P. Castro & Campacci GO (15)
donianum Batem. ex Baxter PR, RJ, SC
hydrophilum Barb. Rodr DF, GO, MG, PR, RJ, RS, SC, SP
ramosum Lindl MG
sellowii Cogn. MG (6), PE (6)
warmingii Rchb. f. ES (1), MG, RJ, SP, Venezuela


15- Section oblongata Krzl
(including the section Planifolia Benth & Hook)
amabile doubt species
barbaceniae Lindl MG, PR, RJ, SP
baueri Lindl AL (5 - 10), AP, ES, MG, PA, RJ, SP
caldense Rchb. f. MG
celsissimum Hoffmsgg. sine loco - species dubia
edmundoi Pabst MG (9), RJ
fuscans Rchb. F. ES, MG, PR, RJ, SC
orthostates Ridl AM (2), GO, RO, RR, TO (9), Guiana, Venezuela
pentecostele Rchb. f. RJ (it can be a synonym of O. baueri Lindl)
pirarense Rchb. f. ES, MG, PR, RJ, SC, SP, Guiana
spilopterum Lindl. GO (?), MG, MS (9), MT(9), Paraguay (see the note in section Synsepala)

 


Sections and species nowadays excluded from the genus
and elevated to generic rank

Section Oncidium
BEFORE
NOWADAYS
OCURRENCE
O. urophyllum Lodd Tolumnia urophylla (Lodd. ex Lindl) Braëm (8) AM (possibly)



Section Plurituberculata
elevated to generic rank under Lophiaris

The all section has been transferred to the genus Lophiaris, established by Raffinnesque in 1836.
This change has been based on morphologic characteristics and due to the fact that those species present in the index of chromosomes a clear divergence with the genus Oncidium
(Karlkheinz Senghas, translated by Waldemar Scheliga, in Orquidário, volume 12, # 4).
BEFORE
NOWADAYS
OCURRENCE
O. lanceanum Lindl. Lophiaris lanceanum (Lindl.) Braëm (8) AM, PA, PE (5), Guiana, Suriname, Trinidad, Venezuela
O. morenoi Dodson & Luer Lophiaris morenoi (Dodson & Luer) Braëm (8) ES, MS (9), MT (9), PA (4 - 2), SP, Bolívia
O. nanum Lindl. Lophiaris nana (Lindl.) Braëm (8) AM, MS (9), MT (9), PA, Guiana, Venezuela
O. pumilum Lindl. Lophiaris pumila (Lindl.) Braëm (8) BA, DF, ES, GO, MG, MS (9-11), MT (9), PA, PR, RJ, RS, SC, SP, Uruguay, Argentina
Oncidium schwambachiae (Castro & Toscano) Lophiaris schwambachiae (Castro & Toscano) Sengh(8) ES (8)
O. stramineum Batem ex Lindl. Lophiaris straminea (Batem ex Lindl.) Braëm (8) ?
O. pohlianum Cogn(formerly assigned to a Section pulvinata) Lophiaris pohliana (Cogn) Braëm (8) SP
Natural Hybrid
Rodricidium (Rodriguezia venusta X Oncidium pumilum) ES (7)


Section glanduligera
O. limminghei Ed. Morr Psychopsiella limminghei (Ed. Morr ex Lindl) Lückel & Braëm (8) MG (9), RJ
O. papilio Psychopsis papilio AM (possibly)
Oncidium sp. Psychopsis (possibly Psychopsis sanderae Rolfe (Rolfe) Lückel & Braëm or another closely related species RR (2)







 
Sources:
  (1) Augusto Ruschi
  (2) João Batista F. da Silva - Boletim Caob
  (3) David Miller and Richard Warren
  (4) Luiz Carlos Nepomuceno, Wolmar da Silva Cedivanes, Euzamar Cardoso Silveira, Jair Pereira da Silva
  (5) Augusto Burle Gomes Ferreira
  (6) Carlos Eduardo de Britto Pereira
  (7) Erico de Freitas Machado
  (8) Karlheinz Senghas, translated by Waldemar Scheliga
  (9) Augusto Fernandes Neves
  (10) Segundo Luiz de Araujo Pereira
  (11) Álvaro Pereira dos Santos
  (12) Vitorino Paiva Castro Neto e Marcos Antonio Campacci
  (13) Marcos Antonio Campacci e Eduardo Luiz Martins Catharino
  (14) KLEIN, Roberto M.; BRESOLIN, Antônio & REIS, Ademir