Habenaria brachydactyla J.A.N.Bat. & Bianch. 2017 SECTION Humilis
TYPE Photo/drawing by © J.A.N.Batista & Bianch and The Semantic Scholar Website
LATER
EARLY
Common Name The Short Fingered Habenaria
Flower Size
Found in Goias, Bahia and the Federal District states of Brazil in permasntly wet grasslands or in standing water at the margins of ponds or lakes as a mini-miniature sized, warm to cool growing, aquatic to semi-aquatic terrestrial with a slender, erect stem carrying 2 to 4, one per knot, spreading, largest at the base of the stem, linear-lanceolate, narrow, sheathlike leaves, all along the stem leaves that blooms in the later spring and early summer on an erect, terminal, 1 to 4" 2.5 to 10 cm long, laxly, 1 to 6 flowered inflorescence with oblong, subcaudate, shorter than the pedicellate ovary floral bracts and carrying greens flowers.
"In terms of its habit, Habenaria brachydactyla is similar to the other species, characterized as being slender, with linear leaves concentrated at the base of the stem, which includes H. irwiniana, H. minuta, H. pansarinii, and H. campylogyna. The distinctive features of H. brachydactyla are the very short lateral segments of its petals and lip, and the morphology of its rostelum, with a broad mid-lobe and parallel side-lobes, .016 to .02 [.4 to .5 mm] long and turned forward. In terms of the morphology of its perianth, H. brachydactyla is similar to H. rotundiloba from the coastal plains of north-eastern Brazil, and to H. regnellii, from central, southeastern and southern Brazil and Paraguay, as they all have very reduced anterior petal segments and lateral lip segments. Habenaria rotundiloba, however, has leaves up to 6" [15 cm] long vs .56 to 2" [1.4 to 5 cm] long in H. brachydactyla, leaves appressed to the stem vs spreading, larger flowers, dorsal sepal .22 to .38" [5.5 x 9.5 mm vs. .12 to .14" by .1 x .112" [3 to 3.5 by 2.5 x 2.8 mm] in H. brachydactyla, the lateral segments of the lip rounded vs subacute and the spur clavate vs linear. Habenaria regnelli also occurs in permanently wet habitats, its leaves are linear to oblonglanceolate and concentrated on the lower half of the stem, but not at the base of the stem, the perianth segments are fleshy, and the viscidia united. Habenaria brachydactyla is also similar in terms of its habit and flower morphology to H. pygmaea , which is found in the sandy Amazonian savannas (white sand shrub vegetation) of Colombia and Venezuela. Habenaria pygmaea, however, has leaves lanceolate-elliptical, ovate, ovate-elliptical or elliptical vs linear-lanceolate in H. brachydactyla, lateral lip lobes .12 to .2" [3 to 5 mm] long vs .012 to .024" [.3 to .6 mm] long, and a very distinct gynostemium, with the anthers spatulate, basally attenuate, connected at the base, but without any connective tissue vs elliptical, not attenuate, and connected by connective tissue."879 JAN Batista and Biannch.2017
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ;
* Pl. Syst. Evol. 303: 879 JAN Batista and Biannch.2017 photo/drawing fide
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