Tillandsia organensis
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Tillandsia organensis
Brazil.
Peter Tristram 07/12
Chris Larson 04/14

Peter Tristram ... "One of the treasures I was lucky enough to obtain in Germany was T. organensis. It is a really stunning small silver red-flowered Brazilan species. Luckily I have 2 flowering from different sources so maybe they are different clones and true seed will set. It seems easy enough to grow."

Justin Lee 11/17
Chris Larson 02/19

Justin Lee ... "Are many growing T. organensis ? I've been growing it for a few years but it never flowers. The one in the picture is about the size of a 50 cent piece."
Bob Hudson ... "I do not think i have enough years left to grow that one but best of luck in getting it to flower."
Chris Larson ... "I find that it likes a very sheltered environment."
Chris Larson (02/19) ... "One I find good in the spot it is in shady but not dark, not wet, but humidity from other plants around it. Slow, not too many pups. No seed. Out of synch. with the other red Brazilians. A superb contrast between the colour of the bracts and the petals. (Lap agrees with me that the bracts are kind of orange -I got it right a first.) Almost luminescent when I spotted it today. I love it."


Key to Brazilian Tillandsias, with red or pink petals from Die Bromelie, Sonderheft 3 1996

1. Stamens - exceeding the flower tube => paraensis
- included in the flower tube => 2

2. Leaf blade - filiform and grasslike => globosa
- triangular => 3

3. Plant - 4 - 8 cm in diameter => 8
- 10 - 25 cm in diameter, forming a more or less spreading rosette, stemless => 4

4. Floral bracts - lepidote => 5
- glabrous or nearly so: Plant 6 - 15 cm diameter, inflorescence elliptic or globose, spikes elliptic, sublax with 1 - 3 (- 5) flowers, floral bracts carinate, glabrous or punctulate lepidote, sepals glabrous => roseiflora

5. Inflorescence - elliptic or subglobose => 6
- elongate => 7

6. Leaves - soft, green or reddish, appressed lepidote, spike lax, 2 - 4 flowered, floral bracts shorter than sepals, petals red - violet => geminiflora
- soft, grey, densely lepidote with spreading trichomes, spikes dense, 3 - 12 flowered, floral bracts densely lepidote, exceeding the lepidote sepals => gardneri

7. Leaves - subsucculent, stiff, inflorescence with 4 - 6 spikes => chapeuensis
- Plant only 11 - 13 cm in diameter, an open silvery star-shaped rosette, leaves appressed lepidote, inflorescence with 5 - 7 spikes => grazielae

8. Plant - short - caulescent => 9
- stemless, forming an erect, often subbulbose rosette, leaves often somewhat secund, inflorescence elliptic or subglobose, flowers red or violet, filament not plicate => 10

9. Plant - 3 to 5 cm in diameter, pine cone shaped, dorsiventral, pendant, leaves green, silvery appressed lepidote, inflorescence simple, distichous => reclinata
- 4 to 8 cm in diameter, an erect-secund rosette, the basal leaves recurved, leaves cinereous-lepidote, inflorescence compound, spikes lax, floral bracts carinate, shorter than the lepidote sepals, the posterior ones carinate and 4 mm connate => sucrei

10. Floral bracts - glabrous or nearly so => 14
- lepidote => 11

11. Inflorescence - simple => 12
- bipinnate: Leaves channelled, regularly lepidote with coarse cinereous scales, inflorescence with up to 8 spikes which are laxly 3 - 4 flowered, the posterior sepals carinate, 1/3 to 1/2 connate, lithophytic growing at sea level => brachyphylla

12. Inflorescence - with polystichous flowers => 13
- with distichous flowers: Plant ca. 4 cm in diameter, short caulescent, small pine cone shaped, pendant, leaves grey appressed lepidote => reclinata

13. Leaves - secund, thin and soft, grey with appressed trichomes, looking like grey velvet, scape densely lepidote, inflorescence simple, sometimes compound of up to 3-flowered spikes, floral bracts carmine-red, sepals slightly lepidote, free, posterior ones carinate, petals violet-rose => heubergeri
- Leaves not secund, subsucculent, green, covered with coarse grey scales, plant pendant, floral bracts rose, sepals more lepidote, petals pink => thiekenii

14. Posterior sepals - not carinate => 15
- carinate => 16

15. Leaves many, green-grey, densely lepidote with irregular cumulated coarse trichomes, appearing rough pruinose, epiphytic at sea level => sprengeliana
- Leaves many, narrow triangular, with appressed trichomes, appearing metallic, epiphytic 700 - 1000 m => kautskyi

16. Plant - 2.5 to 5 cm in diameter, rosette of broadly triangular leaves with shorter blade, very densely and regularly silvery subpruinose lepidote, appearing like silvery velvet, sepals carinate and short connate, lithophytic 1800 - 2200 m => organensis
- Plant bigger, up to 15 cm in diameter, rosette often bulbose, leaves grey - green appressed grey lepidote, appearing like grey velvet, bipinnate with 1 - 3 (-5 ) flowered spikes, floral bracts conspicuously carinate, posterior sepals carinate, epiphytic => roseiflora


Updated 18/10/20