Scyphostelma jaramilloi (Morillo) Liede, Meve & Y. M. Pineda, 2023

Pineda, Yam M., Keller, Héctor A., Balderrama-Torrico, José A., Meve, Ulrich, Nürk, Nicolai M. & Liede-Schumann, Sigrid, 2023, Phylogenetics in Scyphostelma (Apocynaceae: Orthosiinae) and description of new species, Willdenowia 53, pp. 83-112 : 98-101

Scyphostelma jaramilloi (Morillo) Liede, Meve & Y. M. Pineda , comb. nov.

≡ Cynanchum jaramilloi Morillo in Pittieria 23: 41. 1995.

– Lectotype (designated here): Ecuador, Pichincha, carretera Chillogallo-San Juán-Chiriboga, empalme alrededor de San Juán , 00°18'S, 78°39'W, 3100–3260 m, Sep 1985, V. Zak & J. Jaramillo 653 ( QCA! [determined by W. D. Stevens as “ Cynanchum pichinchense ”]; isolectotypes: F V0043979F digital image!, GB!, MERF!, MO- 078342 digital image!, QCA! [marked “duplicado”], S!) . – Fig. 12 , Appendix S2, S3.

Iconography — Morillo (1995: 42, fig. 2).

Nomenclatural note — In the protologue of Cynanchum jaramilloi ( Morillo 1995: 41) , the holotype was designated as being in QCA, where in fact there are two specimens belonging to the same gathering. Zak & J. Jaramillo 653. There is no cross-labelling to indicate that they are two parts of a single specimen ( Turland & al. 2018: Art. 8.3). Because the type was indicated by reference to a single gathering, the name is validly published but the two specimens are syntypes (Art. 40 Note 1), one of which is therefore selected here as the lectotype.

Remarks — Scyphostelma jaramilloi is similar morphologically to other Ecuadorian species of Scyphostelma with ovate, acute leaves, such as S. pichinchense (K. Schum.) Liede & Meve (the type specimen of S. jaramilloi was first identified as S. pichinchense ) and S. sodiroi (K. Schum.) Liede & Meve. Leaf size of S. jaramilloi (15–25 × 0.7–17 mm) is intermediate between S. pichinchense (25–70 × 8–25 mm) and S. sodiroi (6–20 × 3–8 mm). In addition, S. pichinchense is entirely glabrous, whereas S. jaramilloi and S. sodiroi bear trichomes both along the stem and on the leaves. Morillo (1995: 23) differentiated S. jaramilloi from S. sodiroi by its larger leaves, longer pedicels, larger gynostegium and corona lobes slightly shorter than the gynostegium (vs slightly longer than the gynostegium in S. sodiroi ).

Figures

Fig. 12. Scyphostelma jaramilloi – A: branch with leaves and inflorescences; B: flower; lateral view; C: flower, two corolla lobes removed; D: sepal; E: corolla lobe; F: corona lobe; G: gynostegium; H: pollinarium; – A–H from the lectotype, V. Zak & J. Jaramillo 653 (QCA). – Drawn by B. Neugeboren.