Arachnothryx secunda (Standl.) Borhidi

Rondeletia secunda Standley, Contr. U. S. Nat. Herb. 18: 141
1916.
Shrub, the branches slender, terete, reddish-brown, pilose or thinly tomentose when young but soon glabrate; stipules triangular-subulate, 4—5 mm. long, erect, brown, glabra te; leaves opposite, the petioles stout, 3-7 mm. long, thinly tomentulose or glabrate, the blades elliptic, ovate-elliptic, or oval-elliptic, 10-16 cm. long, 3.5-6.5 cm. wide, rounded to acutish at the base, subabruptly acuminate to long-attenuate at the apex, thin, green, obscurely tomentulose beneath when young but soon glabrate, the costa slender, prominent beneath, the lateral veins slender, 7-9 on each side, subarcuate, ascending at an angle of 45° or more; inflorescence terminal, cymose-paniculate, 6-7 cm. long and broad, lax, the peduncles slender, 4—6 cm. long, the flowers secund, sessile, and usually remote along the slender scorpioid branches; bracts small, linear, green, the bractlets minute, subulate; hypanthium obscurely tomentulose or glabrate; calyx-lobes 4, linear or spatulate-linear, 1-3 mm. long, obtuse, unequal, reflexed; corolla white, sparsely villosulous outside, the tube slender, 10-12 mm. long, naked in the throat, the 4 lobes rounded, 3-4 mm. long, spreading; anthers and style included; capsule globose, 3-4 mm. in diameter, reddish-brown; seeds numerous, minute, angulate, brown, punctulate.
Type locality: Forests around Puerto Obaldia, San Bias Coast, Panama, at an altitude of 50 meters or less.
Distribution: Known only from the type locality.