SITF Blog

Eria-hyacinthoides-2023-10-17 *SITF has determined this plant to be Bryobium tridens, not Eria hyacinthoides (Oct 2023).
Eria hyacinthoides was moved to Bryobium hyacinthoides in 2005 and is now a synonym; however, the mentum and overall shape of the lip of this plant do not fit B. hyacinthoides. The images of this plant when enlarged show three clearly resolved crests. This feature is a key characteristic of Bryobium tridens, for which the species is named. This plant also has five veins in the leaf with an unequal, bilobed apex which fits the description of B. tridens in the IOSPE. The species is found in the Philippines and this plant is an excellent match to the description and photo of B. tridens in Cootes' "Orchids of the Philippines".

Posted on Oct 17, 2023

Was unable to dissect a flower. One inflorescence had fallen off, but was way too wilted by the time the photos were made to be handled without smearing it all over. Also did not get a ruler into th...

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Galeandra-magnicolumna-2023-10-17 *SITF confirms that this plant is Galeandra magnicolumna (Nov 2023).
The spelling of G. magnicolumna was corrected according to Kew POWO. The lip color is very light compared to most G. magnicolumna species than are shown in the available photos of this species, but can be seen. The lip hairs (trichomes) of this plant, a key characteristic, are identical to G. magnicolumna photos and match the description in the Lindleyana Vol. 10 (1995). The hairs on the underside of the column also match the drawing in the Lindleyana and can be seen back in the throat of the enlarged photos. There are thirteen closely matching photos of G. magnicolumna in the orchidroots.com.

Posted on Oct 17, 2023

Five well-presented flowers on one secondary inflorescence on a 55-cm deciduous plant grown semi-hydroponically in a 10-cm by 6-cm re-purposed plastic jam jar; sepals and petals chestnut, chartreuse m...

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Dendrobium-tipuliferum-2023-10-04 *SITF confirms this plant is Dendrobium tipuliferum (Oct 2023).
This plant and Den. tipuliferum (synonym Diplocaulobium tipuliferum) have very distinctive lip form, lip margins and markings, especially in the throat. It is an excellent match to photos in the OW, IOSPE, orchidroots, Woods, "The Dendrobiums" and Laverack et. al., "Dendrobiums and their Relatives".

Posted on Oct 4, 2023

Seven delicate, stellate flowers on seven inflorescences on a 28 growth, compact plant; immature pseudobulbs linear, two-edged, mature pseudobulbs conical to obovate, up to 21.6cm; flowers creamy whit...

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Phragmipedium-x-brasiliense-2023-10-02 *SITF confirms this plant is Phragmipedium x brasiliense (Jan 2024).
Accepted by Kew POWO, Phrag. x brasiliense is a natural hybrid of P. lindleyanum × P. vittatum. It is described in the Orchid Digest 67: 242 (2003). There is a very good, detailed discussion of this by the co-author with Olaf Gruss, Robert Quene, in https://www.slippertalk.com/threads/phrag-brasiliense.1318/ with good photos and a reference to the original publication. This plant matches the images of P. brasiliense in the slippertalk thread.

Posted on Oct 2, 2023

One pleasing flower and one bud on one upright, sequentially-flowering, 50-cm inflorescence; plant 64 cm high x 50 cm wide with five monopodial growths; leaves linear, smooth medium-green; bracts and ...

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Bulbophyllum-kubahense-2023-10-01 *SITF confirms this plant is Bulbophyllum kubahense (Oct 2023).
Bulbophyllum kubahense is closely related to B. refractilingue. B. kubahense appears to have flowers with segments more rounded, obtuse at the apices, where B. refractilingue appears to have flowers more pointed on the apices when compared to the photos. Also, based on flower size, with B. kubahense measuring 2.5 cm vs. less than two for B. refractilingue, this flower matches B. kubahense measuring 2.8/2.6 cm. Dr. J.J. Vermuelen, the "Orchids of Borneo Vol 2" describes B. refractilingue as having well defined teeth along the lower margins of the column; however, there is no evidence of these in this plant which appears to have a smooth margin. Both species have very well defined downswept thick horns like this plant.

Posted on Oct 1, 2023

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Chytroglossa-marileoniae-2023-10-01 *SITF confirms this plant is Chytroglossa marileoniae (Oct 2023).
There are three species in this Genus: C. aurata, C. marileoniae and C. paulensis. The only other similar species is C. aurata, but the inflorescence of C. aurata is too long at 15 cm, where the inflorescence on this plant measured 4.5 cm and C. marileoniae is described as having an inflorescence of 5 cm. This plant has on average 4.6 flowers per inflorescence and C. marileoniae has 4-6 flowers per inflorescence and C. aurata has 10 flowers per inflorescence. This plant also matches the previous AOS/CHM awarded plant and Baker's description in the OW. The species is endemic to S.E. Brazil.

Posted on Oct 1, 2023

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Maxillaria-cucullata-2023-09-29 *SITF confirms this plant is Maxillaria cucullata (Dec 2023).
The form of this flower is a good fit to Maxillaria cucullata. The Feb-Mar 2018 Australian Orchid Review article on Maxillaria by David Banks shows photos of this species which match this plant. The article states M. cucullata is a highly variable species with a degree of darker markings ranging from fine pepper spotting to larger spots. The lip can vary from tan to dark brown to almost black. These flowers had dark spots on the sepals and petals with a dark brown lip. Flower size can vary from 4 to 9 cm; this flower measured 4.5 cm N.S. This plant has large, cupped bracts slightly longer than the ovaries and which partially cover the basal portion of the flower which fits the description of M. cucullata in Eric Christenson's Unfinished Monograph on Maxillaria; however, Christenson also stated that the species had no markings on the flowers.

Posted on Sep 29, 2023

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