Reproductive morphology of the lycophytes. Lycophyte sporangia are stalked and kidney-shaped, as in the zosterophyllophytes. In the earliest lycophyte groups, such as the Asteroxylales, the sporangia are oriented across the leaf, so that the widest dimension of the sporangium is perpendicular to the axis of the leaf. cross section of a member of the order Lycopodiales is shown above. You can see the large red xylem cells because they have been stained with a chemical which sticks to the lignin in the cell walls of that tissue. Notice that there are other kinds of tissues among the xylem.
(February 2013) A standing rib roast, also known as prime rib, is a cut of beef from the primal rib, one of the nine primal cuts of beef. While the entire rib section comprises ribs six through 12, a standing rib roast may contain anywhere from two to seven ribs.
beef rib steak is a cut of meat from a cow or steer it is cut from the rib section of the animal it has different names from different sections of the ribs and is sometimes called prime rib although it is not qualified as prime by federal standardsypes a beef rib steak has a couple of different varieties depending on what part of the ribs they are from the back ribs are best known as barbecue beef ribs they are not particularly meaty but are long and are a favorite past times of barbeques and family events a rib eye steak is very popular throughout society