Silene invisa cyme of up to three flowers at the top of the stem. Each flower has a bell-shaped calyx of fused sepals lined with ten green veins and covered in short, glandular hairs. The strap-shaped or rectangular petals have blunt tips or may be notched. They are whitish to pinkish or lavender and sometimes barely protrude from the calyx. Silene invisa Silene invisa is a species of flowering plant in the pink family known by the common names red fir catchfly and short-petaled campion. It is endemic to California, where it is known only from the southernmost Cascade Range and northernmost
Surround sessions experience. This new method of packaging ads does not require longer download times, more screen space, or annoying browser tricks. Surround sessions Advertising sequence in which a visitor receives ads from one advertiser throughout an entire site visit. Recently introduced by the online unit of the New York Times, the "surround session" is creating a major buzz in the online advertising community. The session model represents a potentially significant shift in the way advertisers view online media, as more emphasis is placed on the real interaction between advertisers and audiences. In a surround session, an advertiser has all or most