A Key to the Anguloa Species and their Natural Hybrids.

ANGULO@ Back to main page
Your interactive personal assistant to identify the Anguloa species and their natural hybrids Adapted, with permission from the author, from :
" Anguloa: the species, the hybrids and a checklist of Angulocastes ", by Dr. Henry F. Oakeley, published in Orchid Digest , volume 63(4) Oct., Nov., Dec., 1999.
Reprints are available from the author, please enquire .

Recognized species & varieties : Ang. brevilabris , Ang. cliftonii , Ang. clowesii & Ang. clowesii var. flava , Ang. dubia , Ang. eburnea , Ang. hohenlohii & Ang. hohenlohii var. macroglossa , Ang. tognettiae , Ang. uniflora , Ang. virginalis

Natural hybrids : Ang. x acostae , Ang. x rolfei , Ang. xruckeri

Go to the Anguloa Picture Gallery
Go to the Determination Key

How to use this interactive determination key :
Make sure that you are actually considering an Anguloa species or natural hybrid.

Closely study the flower. Whenever possible, have it on hand during the determination procedure.
Start at top of the dichotomous table: (1).
Select one of the two proposals (i.e. choose the best match for your flower: either 1 or 1’) by clicking on it, this will bring you automatically to the next step (indicated in the column at right).
Repeat the procedure until you end up with the name of a species or natural hybrid of Anguloa.
Click on the name, this will open a new page containing further information and pictures that will validate your determination

Troubleshooting:

In case of mismatch, go back one step by using the "back" button of your browser . Have a closer look at your flower and resume the determination process !.
If you feel that your plant definitely DO NOT match any description of the key and if you are confident that your plant is really an Anguloa species or natural hybrid, please refer to Dr. Henry F. Oakeley for the expert opinion !.
If you experience any technical problem when using this interactive determination key, let me know.

Interactive determination key to identify the Anguloa species and their natural hybrids Back to top

1	Lip with narrow stalk attaching the base to the column foot	2
1’	Lip directly hinged at base to column foot	3

2	Lip ewer-shaped	*Ang. cliftonii*
2’	Lip boat-shaped	*Ang. xrolfei*

3	Lip kinked at base	4
3’	Lip not kinked at base	5

4	Flowers predominantly dark red internally	*Ang. brevilabris*
4’	Flowers predominantly white, with pink or brown suffusion or spots	*Ang. virginalis*

5	Lip tubiform	6
5’	Lip boat-shaped	9

6	Lip tubiform, edges overlap or nearly so in midline	7
6’	Lip tubiform but edges wide apart	*Ang. xacostae*

7	Lip tube straight	8
7’	Lip tube narrower (constricted) in mid-part	*Ang. uniflora*

8	Lip tube wide, lateral lobes short, reflexed apically to form triangle	*Ang. eburnea*
8’	Lip tube narrow, long square lateral lobes	*Ang. tognettiae*

9	Lip midlobe tridentate	10
9’	Lip midlobe not tridentate	*Ang. dubia*

10	Lip yellow or white	11
10’	Lip red	12

11	Lip white	*Ang. clowesii*
11’	Lip yellow	*Ang. clowesii* *var. flava*

12	Flowers red internally	13
12’	Flowers yellow-spotted red internally	*Ang. xruckeri*

13	Anther cap glabrous	*Ang. hohenlohii*
13’	Anther cap hairy	*Ang. hohenlohii var. macroglossa*

End of determination key.
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Updated 2003 11 09
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