Jaltomata (Solanaceae) of Arizona, USA, Mexico and Central America |
revised 13 Oct 2014 |
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, CT 06050-4010 |
Link to Jaltomata homepage |
Link to Jaltomata of Costa Rica |
All species are protogynous (pistillate before becoming hermaphroditic) with one exception: J. darcyana is hermaphroditic when it opens. Fruits are purple/black with a few exceptions: fruits that are green at maturity have been documented on some accession of J. chihuahuensis and some accessions of J. procumbens. |
species |
diagnostic characteristics |
distribution |
calyx with fruit |
|
![]() |
|
widespread & common Arizona, USA to Ecuador |
||
|
widespread & common, Mexico to Bolivia |
|||
![]() |
|
northern Mexico |
![]() |
|
|
endemic to Mexico, Mexico |
|||
|
endemic to one high-elevation area of Oaxaca, Mexico |
|||
|
endemic to one cloud forest area of Chiapas, Mexico |
![]() |
||
|
endemic to one area of Michoacan, Mexico |
![]() |
||
|
Guatemala |
|||
Guatemala |
||||
|
Mexico and Costa Rica, probably also between |
Key To The Jaltomata species of Mexico
The following key needs to be revised to include Jaltomata darcyana
1a. Anthers of a flower unequal in size, most noticeable during the pistillate phase while anthers are undehisced; filaments sigmoid or curved during hermaphroditic phase; style curved; strongly but not exclusively associated with coffee plantations. J. repandidentata
1b. Anthers of a flower equal in size; filaments straight during hermaphroditic phase; style straight; habitat variable, including agricultural fields and other disturbed areas.
2a. Calyx lobes concave in cross section; calyx purple at time of flowering, smaller than 6.8 mm in diameter. J. bohsiana
2b. Calyx lobes not concave in cross section; calyx mostly green at time flowering, larger than 7 mm in diameter.
3a. Anthers longer than 2.8 mm; leaves and branches densely velutinous; pollen diameter greater than 42 µm. J. grandiflora
3b. Anthers shorter than 2.8 mm; leaves and branches glabrate to pubescent or hirsute; pollen diameter less than 39 µm.
4a. Vestiture of stems and leaves variable (including glabrate) but never hirsute; filaments angling away from style at 45 degrees during hermaphroditic phase; corolla 5-lobed or with alternating lobes and lobules totaling 10; flowers per inflorescence variable; peduncle length variable; Arizona, USA to Ecuador. J. procumbens
4b. Stems and leaves hirsute; filaments angling away from style at no more than 15 degrees during hermaphroditic state; corolla 5-lobed; inflorescence up to 4-flowered; peduncles not longer than 15 mm; northern Mexico. J. chihuahuensis