Jaltomata yacheri Mione & S. Leiva, Novon 17: 49 - 58. 2007.
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The information on this page may be cited as a communication with professor Thomas Mione,
Central Connecticut State University, Biology Department, Copernicus Hall, 1615 Stanley Street, New Britain, Connecticut 06050-4010, United States of America.
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| Above: Photo of type specimen by Mione, film to print and then scanned | Above: Mione, Leiva & Yacher 737, digital photo by Mione |
Suffrutex; laminae ad 8 x 4.6 cm, aliquantum coriaceae, piliferae simplices vel dendriticae; inflorescentia 2--3 (-4)-flora; corolla urceolata, cyanea-purpurea, limbus 18-20 (-25) mm latus, reflexus, lobis 10; stamina 13--17 mm, antherae 2.4--3.3 mm; styli 1.5--2 cm.
| Character | description |
|---|---|
| Habit & Height | Suffrutescent, to 1.5 m high |
| Young axes | young axes pilose, green, terete |
| Woody axes | woody stems terete, glabrous, green |
| Leaves | geminate, the blade ovate, to 8 X 4.6 cm, somewhat coreaceous, abaxially and adaxially pilose with hairs simple to branchlet, the apex acute, the base rounded to somewhat truncate, the margin entire, ciliate; petiole to 1.8 cm. |
| Flowers Per Inflorescence | inflorescence axillary or less commonly arising from a stem dichotomy, 2- to 3- (4 including buds) flowered |
| Peduncle & Pedicel | 6--10 mm; 5--10 mm; both terete, green and lanate. |
| Calyx | green and reflexed at anthesis, to 18 mm across, the lobes triangular, abaxially velutinous with branchlet hairs, adaxially with glands, the margin ciliate; at fruit maturity green and 18--20 mm across; |
| Corolla | urceolate with a reflexed to revolute limb, bright blue-purple, the tube 8--13 mm long, glabrous within, the base 10--12 mm in diameter, with 5 cavities full of nectar between the expanded bases of the stamens, abaxially with simple, forked and branchlet hairs mostly on the main veins, the limb 18--20 (-25) mm across including lobes, adaxially pilosulose with finger hairs 0.2--0.3 mm, the terminal cell of which is rounded and densely staining |
| Corolla lobes/lobules | 10-lobed: 5 lobes alternating with 5 lobules, all triangular, the margin ciliate |
| Radial Cor Thickenings | |
| Flowers remain open at night? | |
| Stamens | 13--17 mm, varying in length within a flower prior to anther dehiscence; filaments dark purple at base, otherwise pale green, pubescent on proximal 20--25% of the length with unpigmented simple hairs |
| Anther length & color | yellow, 2.4--3.3 mm, exserted 5--14 mm beyond the mouth of the corolla; not mucronate |
| Pollen Quantity | |
| Disk around ovary | disk girdling base of ovary |
| Ovules per ovary | |
| Style length (hermaphroditic phase) | 1.5--2.0 cm, pale-green |
| Stigma | capitate, bilobed, green, 0.84--1.5 mm |
| Gynoecium | glabrous except for stigma papillae 60--90 µm long |
| Nectar | nectar translucent |
| Herkogamy? | exserted 8--13 mm beyond the mouth of the corolla |
| Fruit: color (at maturity) and size | subspherical, orange and to 11 mm across at maturity, the style somewhat persistent. |
| Seeds | 55 to 108 per berry, reniform. |
| Chromosome number |
Discussion. Jaltomata yacheri is similar to J. contumacensis. J. yacheri grows to 1.5 m high, has a bright blue-purple corolla, the corolla limb becomes revolute, the calyx is reflexed during anthesis, and the anthers are not mucronate. Jaltomata contumacensis, on the other hand, grows to four m high (with the support of other plants), has a light green corolla with a nearly rotate limb, the calyx is rotate during anthesis, and the anthers are sometimes mucronate.
Distribution, ecology, etymology and uses. Jaltomata yacheri is known only from Peru, department Cajamarca, province Hualgayoc, in the vicinity of the city of Hualgayoc, where it is locally common on the side of the road at 3460 m. Translucent floral nectar was observed in the field both in 1999 and 2007. The specific epithet was chosen by T. M. and S. L. G. to honor Dr. Leon Yacher. Three locals told us that the mature berries are consumed uncooked.
Specimens studied, all Peru, all Department Cajamarca:
| Province | Locality | elevation m |
habitat | date |
collector | data entry |
| TYPE: Hualgayoc | near Hualgayoc | 3460 |
roadside | 18 June 1999 |
Mione, S. Leiva G. & L. Yacher 670 (holotype, MO; isotypes, F, HAO) | April 2007 |
| Paratype: Hualgayoc | near Hualgayoc | 3460 |
roadside | 18 June 1999 |
S. Leiva G., T. Mione & L. Yacher 2372 (CORD, HAO) | April 2007 |
| Hualgayoc | entering Hualgayoc coming from Bambamarca, 6 45.741, 78 36.136 |
3515 |
roadside | 19 March 2007 |
Mione, S. Leiva G. & L. Yacher 737 | April 2007 |
| Hualgayoc | entering Hualgayoc coming from Bambamarca, 6 45.741, 78 36.136 |
3515 |
roadside | 19 March 2007 |
S. Leiva G., T. Mione & L. Yacher 3640 (CORD, HAO) | April 2007 |