Masdevallia

This classification is from Icones Pleurothallidinarum II, Systematics of Masdevallia, by Carlyle A. Luer published in 1986. Subgenera are underlined Sections and subsections are in bold type and indented. A few, representative species are listed along with other relevant information.

 
Amanda

Amandae - amanda, tridens - 'lovely', 2 to many flowered raceme
Fissae -picturata - 'cleft', sepal are free to near the base, single flowered
Nidificae - nidifica, ventricosa - 'built like a nest', single flowered
Ophioglossae - ophioglossa - "snake-Tongue", single white-flowered species
Pygmaeae - erinacea, hoeijeri, pygmaea - 'dwarf

Masdevallia

Amaluzae - naranjapatae, zahlbruckneri - Amaluza, Ecuador, successive flowering
Aphanes - aphanes - 'obscure', small tailless flowers on a successive flowering raceme
Caudivolvulae - caudivolvula - 'twisted tail', single thick flower with corkscrew tails
Coriaceae
Coriaceae (subsect) - angulata, caesia, civilis, coriacea, colossus, elephanticeps,
peristeria
- 'leathery', usually single flowering, occasionally successive flowering
Durae (subsect) - ayabacana, dura, princeps - 'hard', rigid flowers
Cucullatae - cuculata, macrura - 'hooded', has a hooded flower bract
Ligiae - ligiae - named after Sra. Ligia Posada, found in her collection in 1982

Masdevallia Caudatae(subsect) - asterotricha, caudata, discolor, decumana, instar, prodigiosa, triangularis, tricolor, wurdackii - 'with tails', exposed petals, lip, and column
Coccineae (subsect) - amabilis, coccinea, davisii, ignea, rosea, veitchiana, welishii -'deep red to
crimson', single flowered, petals/lip hidden in sepaline tube, wide lateral sepals
Masdevallia (subsect) - agaster, chaparensis, datura, encephala, glandulosa, hirtzii, uniflora,
yungasensis
- similar to Caudatae w/out exposed petals and lip
Oscillantes (subsect.) - andreettana, wagneriana - 'oscillating lip', loosely hinged lip
Saltatrices (subsect.) - ampullacea, angulifera, constricta, mendozae, strobelii ventricularia
- 'a dancer', fused sepals form tube opening, ventricose sepaline tube
Tubulosae (subsect) - tubulosa - 'like a tube', small, single whitish, tubular flowers

Mentosae - mentosa - 'with a chin', successive flowering, smooth lip

Minutae -floribunda,livingstoniana, minuta, tonduzit - 'very small', successive flowering

Polyanthae
Alaticaules (subsect) - bicolor, infracta, tovarensis, weberbaueri -'with a winged stem'
Polyanthae (subsect) - discoidea, lata, schlimii, thienii - 'many flowered'
Racemosae - racemosa -'racemose', simultaneous and successive flowering, like Masd. section
Reichenbachianae
Dentatae (subsect.) - macrogenia - 'tooth', petals have teeth
Reichenbachianae (subsect) - calura, reichenbachiana, rolfeana, schroederiana
- named in honor of Heinrich Gustav Reichenbach, Hamburg Bot. Garden, no teeth on petals

Melegris- meleagris - 'a peacock', colorfully banded lateral sepal, separated sepals

Pelecaniceps - pelecaniceps - 'pelican-headed', tailless

Teagueia - teaguei - in honor of Walter Teague, discovered it in 1978, raceme


DESCRIPTIONS - from Miniature Orchids by Rebecca Tyson Northern

Masdevallias - The sepals are the most showy and conspicuous part of the flower as well
as the most diverse. 'They are broad at the base, joined for part or nearly all of their length to
form a cup or tube, and often extended into tails (caudae). The petals and lip are tiny and contained
within the cup or tube, sometimes hidden, sometimes exposed. They have two pollinia. The
plants are epiphytic and have no pseudobulbs. The leaves grow close together from a creeping,
branching rhizome. This allows many to reach specimen size quickly. The leaves are paddle-shaped.
The base of the stem is surrounded by tubular bracts (sheaths). 'Flower stems come
from the rhizome beside the leaves'.

Draculas - Dr. Luer moved the 'chimera' group from Masdevallia into this genus. The
name means 'little dragon'. Many of them are odd-looking, furry, and have long tails. 'The plants differ
from Masdevallia by having thin, keeled leaves that fold together at the base.' The flower petals
'have divided tips or end in knobs, and a two-part, often mobile,' shell-shaped lip.

Dryadellas - Dr. Luer named this genus 'after the dryads, mythological nymphs of the
trees and forests'. The plants differ from Masdevallia by 'having narrow, channeled, fleshy,
leaves'. The flowers differ by having 'a transverse callus or thickened fold near the base, below which
they are joined to form a chin or mentum below the column foot and the lip is long and tongue-like'. The
flowers have a protective coloring and their buds are shaped like birds' heads giving them the
nickname, 'partridge in the grass.

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 AOS JUDGING - the Pleurothallid scale is ideal for most Masdevallias.

Form (35pts.) Color (35pts) Other Chars (30pts) General form -20 General color -20 Size of flower - 10 Dorsal sepal - 4 Dorsal sepal - 5 Sub/texture - 7 Lateral sepals - S Lateral sepals - 10 Habit/Arrangement - 5 Caudae - 3 Floriferousness - 8

It can be difficult to determine these factors because of the wide variety in the genus As with all other genera, it is very important to know the characteristics of the species involved. Also, the petals, lip, and column are usually very small and insignificant. Their measurements are not stated in most award descriptions.


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