Tolumniaverified

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from the owner- The
base of the stem is flat. The leaves are not terete, more of a flattened
terete leaf. Hope the pictures help.

Thanks,

Bryon

Patricia:

Bryon ask me to send you the measurements of the leaves. The
longest one is 4.6 x 0.5. Most of the leaves are 0.5 wide but some are shorter
than the longest. Leaves appear to be flattened. If you need any more
information, let us know.

Max

20165104 GPJC

Tolumnia guibertiana (A.Rich.) Braem, Orchidee (Hamburg) 37: 58 (1986).

This name is accepted.

Tolumnia guibertiana (A.Rich.) Braem, Orchidee (Hamburg) 37: 58 (1986).

* Oncidium guibertianum A.Rich. in R.de la Sagra, Hist. Fis. Cuba, Bot. 11: 244 (1850).

Tolumnia lemoniana subsp. guibertiana (A.Rich.) Braem, Schlechteriana 1990: 40 (1990).

Oncidium lyratum Withner, Amer. Orchid Soc. Bull. 36: 400 (1967).

Oncidium moirianum Osment, Florida Orchidist 15: 147 (1972).

Tolumnia lyrata (Withner) Braem, Orchidee (Hamburg) 37: 58 (1986).

Tolumnia moiriana (Osment) Braem, Orchidee (Hamburg) 37: 58 (1986).

Key to the Species of Tolumnia

1. Callus of the labellum a simple, low
thickened area below the column

2.
Petals nearly as large as the labellum; lateral lobes of the labellum
much smaller than the mid lobe, flowers

mostly reddish-brown; Jamaica
……………………………………………………………. xx. T. triquetra

2.
Petals inconspicuous, much smaller than the labellum; laberal lobes of
the labellum combined about the

same size as the mid lobe;
flowers mostly white; Jamaica ……………………………… xx. T. gauntlettii

1. Callus of the labellum complex, composed of a
multi-horned crest

3.
Callus spider-like, pubescent, composed of a subquadrate fleshy pad with
6, long horns extending over the

mid lobe; labellum dark
reddish-brown to brownish-black; Dominican Republic ………. xx. T. henekenii

3.
Callus not reminiscent of arthropods, glabrous, composed of several
horns that rarely extend to the mid

lobe; labellum yellow, white,
reddish brown, to purple

4. Leaves terete or semiterete, lateral sides
convex, aciculate, 1-3 mm diam.

5. Petals larger than the mid lobe of the
labellum; leaves filiform, ca. 1 mm diam; Cuba

……………………………………………………………………………….…
xx. T.
usneoides

5. Petals much smaller than the mid lobe of the
labellum; leaves 2-3 mm diam.

6. Labellum fimbriate, emaculate, yellow; petals
ovate to triangular-lanceolate; Cuba, Cayman

Islands,
Hispaniola ………………………………………………….………… 3. T.
calochila

6. Labellum entire to dentate; petals pandurate
to obovate; Cuba or Bahamas

7. Plants caespitose; labellum yellow with
reddish spots on the mid lobe; epiphytic on

shrubs
in dry cactus-thorn scrub; Cuba ……………… xx.
T. lemoniana var. guibertiana

7. Plants with elongate, erect rhizomes;
labellum white to pink; habitat dry cactus-thorn

scrub
and pine forests; Cuba or Bahamas

7A. Leaves less than 6 cm long; high elevation
pine forests, epiphytic in bunch grasses

or
terrestrial in thick pine litter; Cuba ……...…………………...…. xx. T.
sylvestris

7A. Leaves up to 28 cm long; low elevation scrub,
epiphytic on small shrubs; Bahamas

……………………………………………………….……………
xx. T.
bahamensis

4. Leaves triquetrous, laterally compressed,
concave to flat, at least 3 mm wide

8. Petals very similar to the labellum in shape
and size; flowers largely yellow, red and white, or red

and yellow;
Hispaniola ………………………………………………………… xx. T.
guianensis

8. Petals shaped differently than labellum,
usually much smaller in size; flower color variable

9. Peduncle strongly compressed, most evident
near base; flowers yellow with reddish spots on

the mid
lobe of the labellum; Hispaniola ……………………………. xx. T. compressicaulis

9. Peduncle terete; flowers variously colored

10. Lateral sepals separate 1/3 to near base

11. Flowers multi-colored; lateral sepals
separate to near base, spreading;

column
wings as long as column, each with 2 prominent teeth 2. T. arizajuliana

11. Flowers yellow with red spots on labellum;
lateral sepals separate 1/3-1/2 their

length; column wings subquadrate to
dolabriform, shorter than column, lacking

prominent teeth …………………………………… xx. T. lemoniana var. lemoniana

10. Lateral sepals completely connate to an
entire or bifid apex, lying adjacent to pedicellate

ovary or labellum

12. Inflorescences wiry, peduncle and rachis
21-90 cm long, kekhis occasionally

forming
on older inflorescences; flowers yellow; Puerto Rico to the Lesser Antilles

13. Labellum coarsely dentate; rachises straight;
racemes lax, few-flowered; kekhis

commonly
forming on upper nodes of peduncle; Puerto Rico to the British

Virgin
Islands ……………………………………………….. xx. T. prionochila

13. Labellum entire to obscurely crenulate;
rachises fractiflex; inflorescences

racemes
later forming panicles; kekhis rarely form; Lesser Antilles

………………………………………………………………….
xx. T.
urophylla

12. Inflorescences erect, few to many-flowered,
peduncle and rachis usually less than

30
cm, never forming kekhis; flower color various

14. Plants growing rigidly erect in bunch grasses
in pine forests at high elevations,

rhizomes
elongate and erect; flowers white to purple with reddish-brown

markings
on the sepals and petals and around the callus; Hispaniola

………………………………………………………………….
xx. T.
scandens

14. Plants epiphytic on trees and shrubs at low
to high elevations, rhizomes short,

or
if elongate, then repent, not rigidly erect; flower color variable

15. Flowers yellow with reddish brown spots on
sepals and petals

16. Petals large and showy, flowers wider across
petals than across the

labellum;
floral bracts straight

17. Plants of low elevations, dry habitats;
flowers white or red-orange;

callus
tubercules 2-2.5 mm long; Cuba ……….. xx.
T. lucayana

17. Plants of high elevations, wet habitats;
flowers yellow with red

spots;
callus tubercules 4-4.5 mm long; Cuba and Hispaniola

18. Plants pendent; mid lobe of labellum spotted;
width across

lateral
lobes of the labellum 2/3 that of mid lobe; Hispaniola

…………………………………………..
xx. T.
tuerckheimii

18. Plants erect; mid lobe of labellum emaculate;
width across

lateral
lobes of the labellum 1/4 that of mid lobe; Cuba

……………………………………………….....
1. T.
acunai

16. Petals much smaller than labellum, relatively
inconspicuous;

Hispaniola

19.
Floral bracts strongly recurved, coarse,
undulate and occasionally

lobulate;
………………………………………… xx. T. haitensis

19. Floral bracts straight, erect, delicate,
entire ……. 4. T. caribensis

15. Flowers white to purple, if yellow, then
sepals and petals barred reddish-

brown,
not spotted

20. Lateral lobes of the labellum large; labellum
across the lateral lobes

about
as wide as mid lobe

21. Flowers yellow; Dominican Republic; petals
inconspicuous

relative
to the lobes of the labellum;

…………………………………………………
xx. T.
quadriloba

21. Flowers white to purple; Jamaica; petals,
lateral and mid lobes of

the
labellum large; fruits unadorned …….…… xx.
T. pulchella

20. Lateral lobes of the labellum much smaller
than mid lobe, labellum

across
the lateral lobes usually small relative to the mid lobe

22. Leaves broadly triquetrous, the dorsal groove
broad, 3-4.5 mm

wide;
Jamaica and Bahamas

23. Petals relatively inconspicuous, flower
broader across

labellum
than both petals; Jamaica ………….. xx. T. guttata

23. Petals prominent, flower narrower across
labellum than both

petals; northern Bahamas …………………….
xx. T.
sasseri

22. Leaves narrowly triquetrous, the dorsal
groove canaliculate, ca. 2

mm
wide; Cuba, Hispaniola, Puerto Rico and the Virgin Islands

…...……………………………………………...
xx go to 23

23. Plants repent, largely
aerial; rhizomes longer than shoots (not

including
inflorescences) or leaves, 3-20 cm long; leaves 1-4.8

cm
long; northeastern coastal regions of Cuba

........................................................
12. T.
hawkesiana

23. Plants caespitose to repent, mostly prostrate
on host;

rhizomes
usually shorter than the shoots or leaves, 0.1-6.9 cm

long;
leaves 1.5-17.2 cm long; throughout the Greater Antilles

except Jamaica .....................................
24. T. variegata

Tolumnia guibertiana, award 20165104, has been confirmed
to be Tolumnia guibertiana by
SITF (May 2016).

See more Tolumnia SITF listings
Learn more about the Tolumnia genus

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