Lecture 6: Citrus fruit and lemons

Question 1

lemon tree

Answer 1

up to 6m tall 
has spines
fruit is tart but can be sweet 
delicately scented flowers
hybrid : citrus x limon

Question 2

origin of lemon

Answer 2

first grown in assam, north burma and chia
brought to europe by muslims
spread by christian crusaders

Question 3

4 species

mpcb

Answer 3

madarin = C. reticulata
pomelo = C. maxima
Citran = C. medica
Biasong samuyao = C. mierantha

Question 4

new hybrids

Answer 4

madarins + pomelo = oranges (C. x Chinensis)

pomelo + orange = grapefruit (C.x paradisi)

Question 5

species

Answer 5

both a unit of evolution and taxonomy, whereas evolution is dynamic, taxonomy tries to confer order and stability

Question 6

ecological species concept

Answer 6

species is a lineage (or close related set of lineage) that occupies an adaptive zone minimally different from that or any other lineage in its range and which evolves separately from all lineages outside its range

Question 7

biological species concept

Answer 7

species is a group of individuals fully fertile inter se, but barred from interbreeding with other similar groups by its physiological properties

Question 8

adaptive zone

Answer 8

it is mammals and in particular humans

Question 9

medici

Answer 9

cosmo de medici founded banking dynasty
spent money on art and living collections 
best lemon collection (116 farms)
-finger lemons caused by mite
-hand of buddha lemons

Question 10

winter and lemon trees

Answer 10

moved to lemon houses
first graft chimaera in horticulture history
outgrowth is mix of two alltypes
1664: half citran half orange

Question 11

Il limoni

Answer 11

eugenio montale
won noble prize for literature
1975