Jaltomata oppositifolia S. Leiva & Mione
Novon 17: 49-58. 2007
Peru
13 Oct 2015  
Link to Jaltomata homepage 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.
Links to the Jaltomata of Cajamarca, Peru, and northern Peru

Figure 1. Jaltomata oppositifolia. Lustrousness of leaves evident, corolla maculae (green) evident through base of corolla
(photo taken in Peru by Thomas Mione, Mione, Leiva G. & Yacher 674)


See the Jaltomata "huancabamba" page for a table comparing this taxon with taxa that are most similar. Comparison with J. salpoensis is not in the table but is presented here:

Jaltomata oppositifolia
has an upright habit, conspicuous corolla lobules, stamens are 5--6.5 mm long, anthers are yellow, and the style is 6.5--8 mm long. Jaltomata salpoensis, on the other hand, is sometimes prostrate, the crateriform corolla lacks lobules, stamens are 2.5--3 mm long, anthers are white, and the style is two mm long (Leiva & Mione, 1999).

Figure 2. Jaltomata oppositifolia.

Corolla maculae (green)
are easy to see as are
the corolla lobules

 

Photo by Thomas Mione in Peru

Mione, Leiva G. & Yacher 674

 

 


Table 1. Description of Jaltomata oppositifolia.

Character Description of Jaltomata oppositifolia Figures
Habit & Height
Shrub to 1.2 m high, learning on other vegetation or erect  
Branches, young
nearly terete, purple  
older
woody, terete, glabrous, to 2 cm in diameter, brown  
Leaves, size usually geminate, to 4 X 1.7 cm, lustrous, coriaceous  
shape the blade eliptic to lanceolate, the apex acute, the margin entire  
hairs glabrous, the margin ciliolate  
petiole 7-10 mm long  
Inflorescence
axillary, with 2- (3 buds) flowers per inflorescence  
peduncle
8--17 mm, terete, purple, glabrous  
pedicel
8--17 mm, somewhat angular, purple, glabrous  
Calyx when flowering: color, size green, 6.5 - 8 mm across  
shape / position during anthesis nearly rotate during anthesis, the lobes deltoid  
hairs glabrous except for scattered glands on both faces, the margin ciliolate  
at fruit maturity at fruiting to 17 mm across  
Corolla color
white with two green maculae flanking the radial vein extending to the tip of each lobe  
shape and size
crateriform-infundibular (broadly infundibular to rotate, protologue), 12--13 mm across  
lobes/lobules
10-lobed: 5 lobes alternating with 5 lobules, the lobes triangular  
hairs
adaxially glabrous on herbarium specimens but pilosulose with gland-tipped finger hairs 0.1 mm long on fresh specimens, abaxially with glands, the margin ciliate with finger hairs 0.5 mm long.  
no dissecting microscope was used
2012, Mione et al. 674
Stamen length 5 - 6.5 mm long  
filaments off-white, pubescent on proximal 55--70% of the length with unpigmented finger hairs  
anther color yellow  
anther size Length measured with dissecting microscope after stored in 70% ethanol: 1.65 - 1.74 mm X 1.7 wide. Length measured with dissecting microscope, pressed specimens: 1.05 - 1.2 mm.  
anther mucronate/mucronulate no  
insertion of filament into anther    
anthers of a flower open simultaneously?    
pollen quantity per flower 56,000 (n = 1 androecium) Mione et al. 674, count by Emmett P. Varricchio, 2012, flower collected in Peru (not grown for study)
pollen grain size 32.5 - 37.5 µm,
mean 34.8 µm
Mione et al. 674, 15 grains, Michael J. Tanasi, 2012, flowers collected in Peru (not grown for study)
corona no  
Stigma
capitate, shallowly bilobed (obscured by pressing), green, 0.51--0.84 mm, exserted 2--2.4 mm beyond corolla; gynoecium glabrous except for stigma papillae 40 µm long 3, 5
Style
6.5--8 mm long, off-white 5
Ovary
disk girdling base of ovary  
Ovules per ovary
81 (n = 1 flower) ovules of both locules were counted; flower collected in Peru (not grown for study)
Nectar    
Herkogamy yes (plants grown in Connecticut) 3
Protogyny    
Fruit color (at maturity) and size
subspherical, orange, to 12 mm across at maturity  
Seeds per fruit
to 106 per fruit  
Seed Size
1.45 X 1.15 X 0.45 mm  
Chromosome number
no data
Growability in Connecticut, USA
no data
 
How long does it take from flower to ripe fruit?
no data
 
Self-Compatible?
no data
 
Seed Germination
no data
 
Ratio of pollen to ovules 691 (56,000 / 81 ovules, n = 1 flower)  
Character Description of Jaltomata oppositifolia Figures

 

     Distribution, ecology, and etymology. Jaltomata oppositifolia is known from the type locality and from near the small town of Paraguay, both in Peru, department of Cajamarca, province Chota, between 2,250 and 3,090 m. This species grows in secondary growth and near streams, but is not common. At the type locality it grows at the edge of one of the last remaining old-growth forests we saw in the region. This forest, Bosque El Pargo, was being cut for wood and agriculture when we visited in 1999. This species flowers and fruits in March, May, June and August. The specific epithet derives from the apparent phyllotaxy.

 

Jaltomata oppositifolia collections studied, geographic and altitudinal distribution
locality elev habitat date collector data entry
Bosque el Pargo (between Llama & Huambos), 6 28 17 S, 79 03 22 W 3050 m border of cultivated fields and forest
19 June 1999
S. Leiva G., T. Mione & L. Yacher 2376 (holotype, HAO; isotypes, C, CORD, MO)[Mione, Leiva G. & Yacher 674 (MO) was collected at same time and place]
April 2009
           
           
           

 

Bosque el Pargo (between Llama & Huambos), S. Leiva G., P. Chuna & J. Cadle 1523 (F, HAO)

A. Sagástegui A., S. Leiva G. & V. Quipuzcoa 15996 (HAO)


a 1 km del poblado de Paraguay (betw. Querocoto & La Granja), S. Leiva G., P. Chuna & J. Cadle 1380 (CORD, F, HAO).

Figure 3

Jaltomata oppositifolia

photo by Thomas Mione at the University of Connecticut Greenhouse, of plants grown from seeds of Mione, Leiva G. & Yacher 674

 

note: stigma exserted beyond dehisced anthers (herkogamy)

Figure 4

Jaltomata oppositifolia

 

photo by
Segundo Leiva G.
taken at
Bosque El Pargo

Figure 5. Style and stigma (shallowly bilobed) of Jaltomata oppositifolia. Units along bottom are mm; Mione et al. 674, photo by Thomas Mione, July 2012, after flower was stored in spirits for years, field collected (not from a plant grown for study).