Jaltomata "weigendiana" unpublished
Peru
created 26 July 2016, revised 1 Nov 2017  
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.
Link to Jaltomata having red nectar
Link to the Jaltomata of northern Peru
Link to local names including of this species
Link to list of Jaltomata species having edible fruits, including this species
Figure 1, above. Flower of Jaltomata weigendiana, Mione et al. 873/874, photo by T. Mione in Peru
Figure 2, above. Ripe and unripe fruits of Jaltomata weigendiana, Mione et al. 873, photo by T. Mione in Peru
Figure 3, above. Flower of Jaltomata weigendiana, Mione et al. 873, photo by T. Mione in Peru

 

Table 1. Geographic and Altitudinal Distribution

Peru, Department Huanuco, elevation 3,727 m. Flowering was very nearly finished for the year when we collected 21 May 2016

Province
Locality
elev-ation
m
habitat
date
collector
  TYPE: undisclosed until publication 3,727 rock wall
21 May 2016
T. Mione, S. Leiva González & L. Yacher 873
  undisclosed until publication 3,727 rock wall
22 May 2016
T. Mione, S. Leiva González & L. Yacher 874

 

 

Figure 4, above. Leaves, calyx and ripe fruit of Jaltomata weigendiana, Mione et al. 873, photo by T. Mione in Peru
Figure 5, above. Woody stem of Jaltomata weigendiana, Mione et al. 873/874, photo by T. Mione in Peru
Figure 6, above. Two ripe fruits of Jaltomata weigendiana, Mione et al. 873/874, photo by T. Mione in Peru
Figure 7, above. Leaves and ripe fruit of Jaltomata weigendiana, Mione et al. 873/874, photo by T. Mione in Peru

 

Character Description Additional notes, or figures on this page
Habit & Height
Shrub  
Branches, young
   
older
   
Leaves, size
   
blade shape including margin    
blade texture    
hairs    
petiole    
Inflorescence
   
peduncle
   
pedicel
   
Calyx when flowering (color, size)
   
shape / position during anthesis    
hairs    
at fruit maturity    
Corolla color
   
green spots No  
purple ring No  
purple in base of corolla No  
shape and size
   
lobes / lobules
   
hairs
   
Yes  
Corona
No  
Stamen length including anther
   
length stamens exserted beyond distal end of corolla (applicable if corolla is tubular or campanulate)    
position of stamens: a) before anthers dehisce, b) after anthers dehisce    
base expanded laterally?    
filaments    
anther color    
anther size    
anther mucronate/mucronulate    
insertion of filament into anther    
anthers with temporally staggered dehiscence?    
pollen quantity per flower    
pollen grain size    
Gynoecium, stigma
   
Style
   
Ovary & Ovarian Disk    
Nectar
red  
Herkogamy    
Protogyny yes  
Fruit color at maturity
orange  
Fruit Size and Seeds per fruit    
Seed Size
   
Character Description of Jaltomata weigendiana Figures on this web page

 

Character Description  
Growability in Connecticut, USA
Easy to grow but does not flower in greenhouse; flowers outdoors in a pot in September.  
How long does it take from flower to ripe fruit?
   
Flowers Closing For The Night?
No  
Self-Compatible?
Yes Flowers manually pollinated in September of 2017 nearly all set fruit.
Seed Germination Seeds stored from 21/22 May 2016 until planted on 6 September 2016 with no treatment and kept moist in potting mix on a warming mat germinated on 21 November, nearly 11 weeks until the first above-ground sign of germination. nearly 11 weeks
  Seeds stored from 21/22 May 2016 until treated with GA (300 ppm) on 4 Nov were planted 5 Nov.  Seed coat was partially removed prior to planting. Kept moist in potting mix on a warming mat. First above-ground signs of germination was 28 Nov 2016. 3 weeks and 2 days
From the above two seed germination trials, I am not sure which one, new seedlings were noted/recorded in February of 2017, at least three and possibly five months after seeds were planted.  
Pollen quantity per flower 121,250 to 170,625 three flowers, from plant grown in Connecticut, USA
Ovules per ovary
198 to 240* three flowers, from plant grown in Connecticut, USA
Ratio of pollen to ovules
612 to 725 three flowers, from plant grown in Connecticut, USA
Chromosome number
no data
no data
Character Jaltomata weigendiana  

*Note, the number of ovules per ovary was 198 to 240 on three flowers from a cultivated plant.  In contrast, the seeds per fruit was 332 to 362 on wild plants, indicating that when cultivated the plants were not growing in ideal conditions.

 

 
 
Figure 9, below. Woody stem immediately above ground level. Units at bottom are mm. Photo by T. Mione, outdoor-grown plant at CCSU September 2017.  Mione et al. 873/874.
Fruits of Jaltomata weigendiana are edible ("se comen").  One berry is on the hand of the girl above. The local name of J. weigendiana is "antaraura."
Photo by Thomas Mione in Peru, Mione et al. 873/874.
Below, photo by Paul R. Wilson, Jaltomata weigendiana, photographed in Connecticut, USA, 2017, from plant grown from seeds collected at or very near the type locality, Mione et al. 873/874.

 

Weeks from manual self-pollination (in the Central CT State Universit greenhouse) to ripe fruit.

Date of Manual self-pollination Date of harves Number of weeks (with rounding to the nearest whole number)
11 September 2017 1 November 2017 7
11 September 2017 29 October 7

 

Paul R. Wilson, working with accession 873/874 at home, reported that a large, somewhat woody branch of Jaltomata weigendiana developed small roots after having the lower section immersed in rain water for about a month. The roots were observed 20 July 2017, and the branch was separated from the main plant between 15 and 21 June 2017. The temperature was between 25 and 32 degrees Celsius for the duration of the rooting process, and humidity was between sixty and ninety percent for the duration of the rooting process.