decipiens is a sure miss, by about a mile or so )) Ya think? Lot of variation in decipiens, it's a pretty big target. :D I'm just throwing darts blindfolded at this point, not much value in trying to guess. It's changed a lot in the last year - longer spines, starting to grow hair - it may change a...

Looks like Echinopsis korethroides to me.

@ Majcka - I've had it a few years, potted it up from the 2 inch pot it was in when purchased. It's definitely one plant. @ vlani - Yes, I was pretty sure it's a mamm. M. compressa does look like a possibility, but I'm leaning more toward M. decipiens. Like you say, there's a few it could be, though...

M. polythele is usually solitary, though it seems there are exceptions. Quite a variable species apparently. That's not wool in the axils, by the way, but coarse hairs - here's a better close-up.

This little guy I took for a Coryphantha at first glance, but I see no grooves in the tubercles. Mammillaria? In a 3 inch pot, a few years old, yet to bloom. Can anybody put a name to it?

Thanks for your input, guys. I need to prune a tree, been setting the cacti farther and farther from it to stay out of its shade but it looks like they aren't getting as much light as they used to. That Ferocactus used to have a bit stouter spines. It shows more color in summer, though, but just on ...

By "brown streaks", do you mean the stripes on the flowers? Many Mammillarias have those, perfectly normal.

A bunch of other genera were merged into Echinopsis - Trichocereus, Lobivia, Chamaecereus, and a number of less familiar ones.

Prolifera also normally has centrals. Here's a duwei that doesn't: http://www.cactus-art.biz/schede/MAMMIL ... en_810.jpg" onclick="window.open(this.href);return false;

I know it looks that way, but I put them outside where they get full sun until late afternoon. The Ferocactus below has grown its whole life in the same conditions, think they need more light?

Longer spines than mine, then.

Mammilloydia candida, maybe?

The second could well be Parodia scopa, there are many color phases. I really like that one.

Hard to pin down the species in that condition. I'd introduce it to stronger light gradually; as pale and stretched-out as it is it could sun-scorch easily.

Agree on the ID - gave one just like that to my sister-in-law, lots of big yellow flowers. What size is that pot - just a little guy, right?

Been consulting CactiGuide's photo galleries for while, but never checked out the forums before - they're great! I've got a couple cacti that have me puzzled. Photography's not wonderful - just have a webcam. I'm in the Pacific Northwest (western Washington); long sunny days in the summer, rains a l...