Agave inflorescence / Downtown Dallas
A recent cactus fiend
The Great Outdoors, Austin
There were a great number of cacti and succulents in bloom during my recent trip to TGO on South Congress in Austin. Others, just looked awesome in the rain. Here are some of my favorites:
1. Gasteraloe species
2. Euphorbia milii / Crown of Thorns
3. Graptopetalum paraguayense ‘White Ghost’
4. Euphorbia bipleurifolia
5. Aloe striata ‘Coral Aloe’
6. Dyckia species
7. Echinocactus grusonii cristata / Crested Golden Barrel
8. Aloe inflorescences
9. Agave ovatifolia ‘Vanzi’
The Great Outdoors, in Austin, has planters unlike anything I have seen. They are mixing a variety of Opuntia, Mammillaria, Agave, and other genus in classic way, but are mixing it up by placing some of the specimens in natural, woven orbs. I didn’t poke around to see exactly how they are doing it, but it has the effect of the old ship in the bottle. They must be either soaking and stretching the orbs or cutting off the portion around the plant. Either way, they look quite intriguing!
Examples of the Golden Angle in Nature
In geometry, the golden angle is the smaller of the two angles created by sectioning the circumference of a circle according to the golden section; that is, into two arcs such that the ratio of the length of the larger arc to the length of the smaller arc is the same as the ratio of the full circumference to the length of the larger arc.
Algebraically, let a+b be the circumference of a circle, divided into a longer arc of length a and a smaller arc of length b such that
The golden angle is approximately 137.508°, or about 2.39996 radians.
The golden angle plays a significant role in the theory of phyllotaxis. Phyllotaxis or phyllotaxy is the arrangement of leaves on a plant stem. Phyllotactic spirals form a distinctive class of patterns in nature. Source: Wikipedia.
- An aloe vera plant. Source.
- The head of a sunflower. Source.
- A Romanesco broccolli. Source.
- A pine cone. Source.
- Unknown. (Virtual high-five to anyone who can tell me what it is.) Source.
#5 is an easy one: Agave victoriae reginae
(And this post is everything I want my blog to be when it grows up)and #1 is A. polyphylla, too.