"Uncle Derek Says"

Tillandsia boliviensis

Derek Butcher Tillandsia boliviensis flower KK124 "This saga started in 1993 when Marie Robinson of Adelaide flowered a T. 'Refiflora' (an undescribed invalid name) obtained from David Scheumack in New South Wales. This plant was an offset of a plant David had obtained from Karel Knize, Lima, Peru, number KK 124. I was able to dissect part of the inflorescence and as I couldn't link it to any named plant, wrote to Renate Ehlers. Meanwhile, rumour had it that it was the same as T. lorentziana var. argentea (an undescribed variety) in Shimizu's picture book on Tillandsias. This plant may well be the same as Knize's KK 124 but it is not a T. lorentziana! Renate advised me that from the photograph and information I had sent her the plant was T. boliviensis.

Let us go back to 1932 in Lyman Smith's 'Studies in the Bromeliaceae', Vol III, where the following is written under T. boliviensis.
"The original description of this species was evidently compounded from two sheets bearing the same number. One of these sheets is T. paraensis Mez, the other, after exhaustive checking with all species of Tillandsia and Vriesea, appears to be a distinct species. Consequently the species is re-described here in order to clarify its identity. Owing to the absence of good flowers, it is impossible to ascertain its exact relationship, but the spikes have much the same general appearance as those of T. patula Mez and the leaves cannot be distinguished from those of T. lorentziana Griseb."

A somewhat truncated description is in Smith and Downs Monograph page 768. Distribution is said to be around Huaricana, Yungas near La Paz, Bolivia.

In 1987 Lieselotte Hromadnik brought the matter up-to-date in Die Bromelie #1 1987 by using her HR 3005 to write a new description. While she brought us new information, there were four criteria that I considered were in conflict. Renate Ehlers confirmed my findings and agreed with me, but she still believed KK124 was Tillandsia boliviensis!
Things were getting nowhere fast so I decided to wait until the offset I had scrounged off Marie Robinson flowered. Then I could investigate further.

In the Summer of 1996 my wife and I were summoned to Len Colgan's place some 8 kms south of where we live. We were to view the flowering of Len's KK120! Both of us said that it was Tillandsia 'Refiflora' and that he must have got his numbers mixed up with KK124! He did have another plant with the number KK124 but that had not yet flowered. I was allowed to dissect number KK120 AFTER photographs were taken. The information that I gleaned almost matched what I had obtained three years earlier for KK124!

According to Karel Knize's plant list KK120 has black-green leaves and comes from Sorata. However, Renate Ehlers advised that in her opinion KK120 and KK124 were the same species. She was still adamant they were Tillandsia boliviensis!

Perhaps I was being just plain stubborn but the description still did not match our plants. So I wrote to Dr Walter Till of the Vienna Botanical Gardens where HR3005 is held in the Herbarium. His answer brought tears of gratitude to my eyes! Not only had Lieselotte Hromradnik omitted to describe the petals as white, she had transposed the indumentum of the floral bracts with that of the sepals. HR3005 clearly shows densely lepidote floral bracts and glabrous to sub-glabrous sepals, which are carinate adaxially albeit not alate. These findings are clarified in Dr Walter Till's article in BSIJ #4 1998 page 173.

What is intriguing is that the drawing done by Lieselotte Hromradnik of HR3005 shows glabrous floral bracts although this information is not in the description. However, her drawing of HR5346, collected in the same area on the same trip shows lepidote floral bracts. What is even more intriguing is that in both drawings the sepals are densely lepidote and yet Dr. Walter Till found none on HR3005! We know that the indument on floral bracts can vary from clearly visible to vaguely visible in Tillandsia xiphioides and this may well be the situation here. However, the indument on the outside of the sepals must be questioned.

With this information at hand, KK120 and KK124 match in almost every criterion in the description of Tillandsia boliviensis.

How can you tell the difference between T. boliviensis and T. lorentziana? If you have the plants side by side it is easy to discern because in T. boliviensis the scape is bent, not straight, and the spike is a rounded flat shape not flat flat! There are other differences if you want to check up on me. To help you decide, I am now going to give a full description, translated from the German in Die Bromelie #1 1987 with my updated corrections.

Tillandsia boliviensis Baker
Emend Smith 1932, Emend Hromradnik 1987, Emend Butcher 1998
Plant Stemless, with short stolon, flowering to 25 cm high.
Leaf To 25 cm long, becoming smooth and soft.
Leaf Sheath Not clearly seen, triangular, to 35 mm wide at base, both sides glabrous for 10 mm, thin, inside a further 10 mm glabrous, nerved, pale green, outside lepidote including the blade.
Inflorescence Mainly simple, rarely with a short side spike.
Scape To 10 cm long, bent downwards, stocky, 4 mm thick, glabrous, green, with 12 mm long internodes, covered entirely by the scape bracts.
Scape bracts Thick leathery, the lower ones flat, the upper ones tipped and to 32 mm long, outside lepidote, inside glabrous.
Spike Sword-shaped, straight, a little complanate, 12 mm wide, internodes 8 mm apart.
Flower To 36 mm long, scentless.
Flower bracts To 33 mm long, thick leathery, triangular at base and 16 mm wide, pink,(to?) densely lepidote, ecarinate.
Sepals Thin, membranous, to 25 mm long, 6 mm wide, at anthesis both sides glabrous (drawings indicate outside is lepidote), smooth, posterior ones keeled (Smith posterior ones wing-keeled).
Petals 32 mm long, platte 7 mm wide, blunt, bent back at tip, white.
Stamens Enclosed in flower tube, filament 18 mm long, ribbon-like, straight (KK120 plicate, KK124 almost straight.)
Style 32 mm long, reaching the top of the petals, white.
Ovary 7mm high, 3mm wide, three edged in cross section.
Stigma Type 1 Brown and Gilmartin, not strikingly small, and with lobes resting together.

This description is based on HR3005, collected in 1977 in the vicinity of La Paz at 3300 m altitude. Smith's description was based on Bang 159A collected in 1890 in the vicinity of La Paz at 3300 m altitude."

Tillandsia boliviensis KK120
Tillandsia boliviensis
KK120
Tillandsia boliviensis flower KK120
Tillandsia boliviensis
flower
KK120
Tillandsia boliviensis KK124
Tillandsia boliviensis
KK124
Tillandsia boliviensis flower KK124
Tillandsia boliviensis
flower
KK124
Tillandsia boliviensis Bang159A
Tillandsia boliviensis
BANG159A
Tillandsia boliviensis HR3005
Tillandsia boliviensis
HR3005
Tillandsia boliviensis HR5346
Tillandsia boliviensis
HR5346
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Photo Credits:
Tillandsia boliviensis and flower, KK120 - Derek Butcher
Tillandsia boliviensis and flower, KK124 - Derek Butcher
Tillandsia boliviensis BANG 159A - Dr. Walter Till
Tillandsia boliviensis drawing, HR3005 - Lieselotte Hromadnik
Tillandsia boliviensis drawing, HR5346 - Lieselotte Hromadnik


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