Callianthe petiolaris (Kunth) Donnell

Dorr, Laurence J., 2025, The native species of Callianthe (Malvaceae, Malvoideae) in northern South America (Colombia, Venezuela, the Guianas and adjacent Brazil), PhytoKeys 260, pp. 75-95 : 75-95

3. Callianthe petiolaris (Kunth) Donnell , Syst. Bot. 37 (3): 720. 2012.

Abutilon petiolare Kunth , in H. B. K., Nov. Gen. Sp. [qu. ed.] 5: 273. 1822 [“ 1821 ”]; Ibid., Nov. Gen. Sp. [fol. ed.] 5: 213. 1822 [“ 1821 ”]. Type: Colombia. Nova Granada, sine loc., s. d. (fr), F. W. H. A. Humboldt & A. J. A. Bonpland s. n. (lectotype, here designated: P [ P 00679725 as image!]; isolectotype: P [ P 002285589 (= F neg. no. 35460) as image!]) .

Sida petiolaris (Kunth) DC. , Prodr. 1: 470. 1824. Type: Based on Abutilon petiolare Kunth .

Type.

Based on Abutilon petiolare Kunth.

Distribution.

Endemic to Colombia where it is found in the Cordillera Oriental; 1100–1300 m elev. Reports for Bolívar and La Guajira Departments (Fryxell in Bernal et al. (2016: 1540 )), probably are incorrect since material from those Departments deposited in the Herbario Nacional Colombiano ( COL) is misidentified and should be referred to Bakeridesia integerrima (Hook. f.) D. M. Bates.

Additional material examined.

Colombia • Cundinimarca: Mpio. de La Mesa, “ Camino del Palmar, ” al SE de La Mesa , 1100–1300 m elev., 16 May 1952 (fl, fr), A. Fernández & L. E. Mora 1382 ( COL [ COL 000139199 as image]) . • Prov. de Tequendama, cerca de Tena , 1300 m elev., May 1853 (fl, fr), J. J. Triana 3160 [5292] ( BM [ BM 013837148 as image]) . • Prov. de Bogotá, près de Tena , 1300 m elev., May 1853 (fr), J. J. Triana 5292 / 3 ( COL [ COL 000139196 as image]) . • Prov. de Bogotá, près de Tena , 1300 m elev., 1851–1857 (fl, fr), J. J. Triana s. n. ( K [ K 006358367 as image], NY, P [ P 06594555 as image]) . • Tena , Andes de Bogotá, 1300 m elev., s. d. (fl, fr), J. - E. Planchon s. n. ( MPU [ MPU 771539 as image]) . • Meta: N elle. Grenade , Cordillera Orientale, La Meta, 1844 (fl, fr), J. Goudot s. n. ( P [ P 06594554 as image]) . • Department unknown: Sine loc., 1783–1808 (fl), J. C. Mutis 958 ( MA [ MA 667364 as image], MA [ MA 667365 as image], MA [ MA 667366 as image], US [01223748]) .

Discussion.

The specimen selected as lectotype of the name Abutilon petiolare was labelled by Kunth as “ Abutilon petiolare mihi ” and is part of the “ Herbier Humboldt & Bonpland. ” It also has flower, fruit and mature mericarps. The isolectotype specimen, part of Bonpland’s “ Herbier de l’Amérique équatoriale, ” was labelled “ Sida [illegible] ” and has a reference in an unknown hand to the publication (quarto edition) of A. petiolare . It has a fruit and a flower.

This species lacks the horticultural appeal of other Callianthe species, yet it is distinctive. Pressed and dried material has a cinereous appearance; simple hairs on stems, petioles and pedicels are exceptionally long and visible without magnification; the leaf blade margin is coarsely serrate; leaf blade apices are long acuminate; petioles often clearly exceed leaf blades in length; and the petals are yellow.