AY Honors/Cacti/Answer Key/es

Cactus
Asociación General Estudio de la naturaleza	Destreza: 1 Año de introducción: 1944

Requisitos

Conexión Logros para la Investidura: Esta especialidad está relacionada con los requisitos de Logros para la Investidura para COMPAÑERO DE EXURSIONISMO Estudio de la naturaleza que requiere (como una de dos opciones) cumplir parcialmente el requisito #5 de esta especialidad. Esta especialidad es una elección popular para la especialidad de la categoría de Estudio de la naturaleza de nivel de destreza 1 requerido para los COMPAÑEROS DE EXCURSIONISMO.

1

Nombrar las características principales de un cacto.

Areoles - Flowers, branches, spines sprout from these- no other plant has this feature.

Spines - Perhaps the most familiar feature of cacti, spines can vary greatly in appearance, shape, size, and color. Spines are not thorns.

Flowers - Flowers are not unique to cacti, but cacti flowers are unique. Cacti flowers are typically quite spectacular and very complex. Unfortunately this field mark is only helpful if the plant happens to be blooming.

Leaves - Most cacti do not have leaves, however, some do. Pay special attention to the presence or absence of leaves.

Origin - All cacti are native to the America's and surrounding islands. With one exception - Rhipsalis baccifera. Although, world wide cultivation has made this less helpful for identification.

2

Nombrar tres usos de los cactus.

Cacti are used for:

1. Decorating and Landscaping - as houseplants, in dry gardens, or, even as a fence.

2. Edible Fruit Producing - such as Prickly Pear, Hylocereus, Dragon fruit.

3. Psychoactive uses - the Peyote, Lophophora williamsii, is a well-known psychoactive agent used by Native Americans in southwestern United States.

4. Host for bugs - the Opuntia is also used as a host for cochineal bugs for the Cochineal dye industry.

5. Food - Nopal cactus has been a staple food and base for beverages in Mexican culture for centuries.

6. Emergency water source - Some cactus can serve as an emergency water source, but be careful as you can get diarrhea causing further dehydration.

3

¿En qué lugares se encuentran los cactus en mayor abundancia? ¿Por qué?

Cacti can adapt very well to dry climate or rocky terrain like deserts or mountains, but they can thrive in jungles. They prefer a hot, dry climate, not a humid, hot climate as popular myth suggests. The fact that they also thrive on sandy/rock soil is because the way water doesn’t pool near or on them and the nutrients the soil is rich with.

4

Conocer e identificar en la realidad o a través de fotos 15 especies de cactus.

Hey! This is your part. Enjoy!

I took photos of these two. Can you identify them?

File:Cacti70512c.png

Cacti

File:Cacti70315a-davismtns.png

Davis Mountains

Now go and identify more...

• Cactaceae-compass barrel.jpg
• Cactaceae-cows tongue.jpg
• Cactaceae-golden barrel.jpg
• Cactaceae-mission cactus.jpg
• Cactaceae-mojave prickly pear.jpg
• Cactaceae-old man of the andes.jpg
• Cactaceae-old man of the mountains.jpg
• Cactaceae-purple pancake cactus.jpg
• Cactaceae-rabbit ears-with-rabbit.jpg
• Cactaceae-red barrel cactus.jpg
• Cactaceae-silver cholla.jpg
• Cactaceae-star cactus.jpg
• Cactaceae-teddy bear cholla.jpg
• Cactaceae-south american.jpg

5

Fotografiar, observar o dibujar al menos 10 especies de cactus y clasificarlos o cultivar al menos tres especies diferentes de cactus.

There are different tribes of cacti:

• Azureocereus imperator 3.jpg

  B. hertlingiana (Tribe Browningia)

• Ariocarpa retusus 1.jpg

  Ariocarpus retusus (Tribe Cacteae)

• Carnegiea gigantea top.jpg

  Calymmanthium (Tribe Calymmantheae)

• Cereus-peruvians1.jpg

  Cereus peruvianus (Tribe Cereeae)

• Starr 030702-0001 Hylocereus undatus.jpg

  Hylocereus undatus (Tribe Hylocereeae)

• Parodia magnifica1.jpg

  Parodia magnifica (Tribe Notocacteae)

• Bergerocactus emoryi1MIBEA.jpg

  Golden cereus (Tribe Pachycereeae)

• Schlumbergera gaertneri.JPG

  Schlumbergera gaertneri (Tribe Rhipsalideae)

• Denmoza rhodacantha 1.jpg

  D. rhodacantha (Tribe Trichocereeae)

• Austrocylindropuntia subulata0.jpg

  A. subulata (Tribe Austrocylindropuntieae)

• Opuntia brasiliensis2.jpg

  Cuija (Tribe Opuntieae)

• Pterocactus kuntzei.jpg

  Pterocactus tuberosus (Tribe Pterocacteae)

• Puna subterranea.jpg

  Maihueniopsis subterranea (Tribe Tephrocacteae)