Calyx Updated July 2018 (6 files)

Calyx

A Photographic Study

Updated July 2018

NOTE:
species heading in red unpublished because of no type sheet 

The first "whorl" of the flower structure in made up of 5 sepals at the end of the pedicel and just outside of the corolla. In the flowers development the calyx at first covers the whole flower bud. As the inner parts maturate, they expands and the corolla pushes ever larger, eventually for the most part hiding the small calyx. Most taxonomists consider this structure so minor that some do not even include it in a hoya description. It is, however unique in some species and has structural characteristics that should be observed and noted. It can vary in length, width, amount of overlap at the base of the sepals, its central thickening, the amount and placement of indumentum (hairs) on its outer surface, in edge ciliation. Occasionally with hair cells inside and in the presence or absence, and number length etc. of a tongue like structure at the sepal sinus area the "ligule"
In Latin this is a Third declension noun and its stem is "calyc-". we usually see it as "calyx" or the genitive form "calycis".

Part 1:  .pdf document  CLICK HERE

Part 2:  .pdf document  CLICK HERE

Part 3:  .pdf document  CLICK HERE

Part 4:  .pdf document  CLICK HERE

Part 5:  .pdf document  CLICK HERE

Part 6:  .pdf document  CLICK HERE

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Hoya Calyx 2016

Hoya CALYX

Sorted By Name Alphabetically 

2016

CLICK HERE

Key:
Length: base to apex
Width: widest portion
Ligules: inside (dorsal) at sepal inner base
Outside: ventral surface
Edge: either entire or with ciliate
Reach Sinus: extending to the corolla sinuses or beyond
Base: Pedicel area at base of calyx (either tapered (T) or bulbosa (B)
O: none
X: present
Shape: round (R), triangular (T), linear (L) (- somewhat or nearly)

Hoya CALYX 1 thru 3

Hoya Calyx

A Photographic Study

revised and updated February 2014

The first "whorl" of the flower structure in made up of 5 sepals at the end of the pedicel and just outside of the corolla. In the flowers development the calyx at first covers the whole flower bud. As the inner parts maturate, they expands and the corolla pushes ever larger, eventually for the most part hiding the small calyx. Most taxonomists consider this structure so minor that some do not even include it in a hoya description. It is, however unique in some species and has structural characteristics that should be observed and noted. It can vary in length, width, amount of overlap at the base of the sepals, its central thickening, the amount and placement of indumentum (hairs) on its outer surface, in edge ciliation. Occasionally with hair cells inside and in the presence or absence, and number length etc. of a tongue like structure at the sepal sinus area the "ligule"
In Latin this is a Third declension noun and its stem is "calyc-". we usually see it as "calyx" or the genitive form "calycis".

Use corresponding document page numbers to find features listed in Table of Contents:

• Part 1 (pg 1~142)  Amrita ~ Acuta   .pdf document  
• Part 2 (pg 143~358)  Acanthominima ~ Camphorifolia similis  .pdf document 
• Part 3 (pg 359~386)    Appendix Species w/measurements + data  .pdf document 

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