Seed are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut. Seeds are produced in several related groups of plants, and their manner of production distinguishes the angiosperms ("enclosed seeds") from the gymnosperms ("naked seeds"). Angiosperm seeds are produced in
Naked yoga all its imperfections and to open one's heart. Naked yoga often symbolizes separation from worldly possessions and helps those who practice it to calm their active mind, which is one of the main aims of yoga practice and is often hard to achieve. San Francisco courts found that naturist and libertarian George Monty Davis (aka "Naked Yoga Guy") did not commit a crime in 2004 by practicing naked yoga in a public place, but rather a variant of public nudity. In 2012, Scott Wiener proposed and had passed a San Francisco municipal code (SF Police Code § 154. (under Article