Jacquemontia macrocalyx Buril

Nomenclature

Accepted name/Authority/Place of publication: 

Jacquemontia macrocalyx Buril

TYPE: Brazil. Bahia: Parque Est. Morro do Chapéu, Lagedo Bordado, 11º16'20" S, 41º05'05" W, 736m., 6 Feb.2011, B. S. Amorim, K. Mendes, D. Moura 752(holotype, UFP; isotypes, SP, MO).

Description

Habit: 
Shrub 0.4–1.5 m tall, woody at base, velutinous, stellate trichomes of two sizes, 4–5-rayed, the shorter ca. 0.3 mm more dense, the longer ca. 0.6 mm sparsely distributed; latex absent; stem internodes 1.7–3.2 cm long.
Leaves: 
Leaf blades 2.5 – 3.6 × 1.7 – 2.2 cm, papyraceous, entire, ovate to broadly elliptic, base rounded to subcordate, apex apiculate to acuminate, green to grayish, yellowish when dried, velutinous, corrugated, but apparent only in fresh material; venation camptodromous, with 5 pairs of secondary veins; petiole 4–6 mm.
Inflorescences: 
Inflorescences as monochasial or dichasial cymes, 2 or 3-flowered; peduncles 0.5–4.5 cm, axiallary, when terminal very short, velutinous; bracts 2, ca. 5 mm, linear, velutinous;
Flowers: 
Sepals membranaceous, entire, unequal, the outer two, 1.2–1.8 × 0.8–1.5 cm, ovate to deltoid, rarely lanceolate, base cordate, apex acuminate to acute, pubescent, intermediate one, 1–1.4 × 0.3–0.4 cm, asymmetric, inner-2, 0.3–0.5 × 0.2–0.25 cm, entire, ovate to lanceolate, base rounded, apex acuminate, pubescent; corolla 1.4–1.5 cm long, funnelform, apex of midpetaline line ciliate, lilac with the tube light pink; stamens ca. 8 mm, filaments pilose on the base, anthers ovoid, white; nectary absent; ovary ca. 0.5 mm, oblong, glabrous, 2-locular, 2 ovules per locule; style 0.5–1 cm, stigmatic lobes ca. 0.5 mm, ovate to flattened, white.
Fruits: 
Capsule 5 x 4 mm, 8-valvate, oblong, subtended by persistent bracts
Seeds: 
Seeds 1 or 2, ca. 3–3.5 mm, trigonal, glabrous, with the lateral ridge lacking.
Author: 
M. T. Buril

Conservation

IUCN Conservation ranking: 
EN: Endangered
Conservation Status: 
This species is assessed here as Endangered, according to the IUCN (2001) Red List criteria. This is assessed as B1, with an area of occupancy estimated to be less than 5000 km², and the population size is estimated to number fewer than 250 mature individuals, as known to occur in only two locations. The new species is known from only two localities in Bahia, Brazil.
Classification: 

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith