Since it's so easy to get pups off of them for propagation and I have no interest in hybridizing them, I never really paid attention to their seed-setting characteristics. When I get home to Mexico in the fall, I'll be more observant and collect some seed for you if I can.

I did google on pollination of aloes and came up with the information that in addition to insects, long-beaked birds are the pollinators. I did notice that the hummers are very active on the aloe plants in BAja.

Below is a cut and paste I googled which may be of some help in germinating aloe from seed.
----------------------------
Sowing the Seeds

The aloe species differ very much in their growth and so do their seeds.

Here is a rough guide.

Germination differ for the seeds - even seeds from the same pod. This enhances the chances for survival.

Use a loose neutral medium about 3 cm deep (little over an inch)- we use crushed palm. Place the seeds on top and cover with a layer of course sand. Place the seedling tray into a larger tray with water to wet the medium. Remove the seedling tray from the water and let the surplus water drip out. Place in a clear plastic bag and keep in a shaded warm place. Not a dark place.

As soon as the seedlings start to appear the bag must be kept open or fungus will damage the seedlings.

It can be days weeks, months. Do not give up on the seeds unless fungus has obviously taken over, and it may be a good idea to keep the medium in the seedling tray slightly moist after the seedlings were transplanted for those late developers.

It happens often that some seedlings will appear after a discarded seed tray that has been standing dry for months is watered.

Seedlings can be crowded without ill effects. It is better to leave them crowded and wait until they have at least three leaves before transplanting.