Notes Aug 24 (T)

leaf axil
axillary bud = lateral bud

Simple vs. compound leaf

pinnately compound (bipinnately compound, from campus walk)
palmately compound

rachis: the midrib of a pinnately compound leaf, from the lowest leaflet(s) to the tip. The petiole is what attaches everything to the stem. A palmately compound leaf has no rachis. See the drawings in Walters & Keil, p. 33, fig. 3-3, b, c and d. (2º rachis see fig. c)

trifoliolate

petiolule

lenticel

stipules

venation

scientific name: genus (always capitalized), specific epithet (uncapitalized), authority
Examples:

Quercus nigra L.
Quercus lyrata Walter
Boehmeria cylindrica (L.) Swartz
Galactia regularis (L.) B.S.P. ["B.S.P." is an abbreviation for Britton, Sterns, and Poggenburg]

just for fun:

• Gammaracanthuskytodermogammarus loricatobaicalensis Dybowski (this is actually the name of an amphipod, not a plant. It is the longest scientific name there is!)
  
• Ia io Thomas (This is a Chinese bat. It is the shortest scientific name in the world.)
  
• Aa brevis Schltr. (This is an orchid. The genus name Aa is the shortest name for any plant. By the way, "brevis" means "short"!)