Cal eco 9:11 - Lecture notes 6 PDF

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cal eco notes class 6, professor rodrigue ...

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Cal eco – 9/11 Floras and floristic keys – a compendium of every species of plant known to exist in the area of flora covered Includes extremely detailed description of each plant Overwhelming botanical detail, some with you use a field micro Description written by expert in that particular taxonomic group Organized by family, then genus, then species, then subspecies/variety What do you need to know before you get into it Names, Latin … arranged alphabetically Flora presumes you already know a lot…that you are aware of the above information Jepson Cal flora Munz Floristic key – decision making tool that gives you a series of choices that lead you to a different part of the key Smaller Narrowing floristic key Flowers Seasonal, doesn’t always have flowers on it Stems and leaf attachments Arrangement (Phyllotaxis) Alternate Opposite Whorled Stems Strict Ascending Decumbent Prostrate Stolon Leaves Simple Single, may be attached with petiole Node Compound 2 styles Pinnately compound

Central axis with leaflets arranged off of it with a terminal leaflet at end Commonly compound All leaflets project from central node Simple leaf – lemonade berry Commonly compound – Stipule Sessile -leaf comes directly out of stem (sticky monkey) Margins of a leaf Complexity Margins Entire Lobed Toothed – crenulate (rounded teeth), dentate (sharper more detailed teeth, right angles to axis of leaf) Serrate – saw blade like Spinose – sharp points on teeth points Leaf shape Linear – longer than wide (needles) Lanceolate – longer than wide (broad leaved) (wide in middle or towards base) Oblanceolate – widest part is toward tip Spatulate Elliptical – symmetrical (widest in middle) Oblong – stretch of parallelness Ovate – egg like (widest part at base) Lemonade berry Obovate – widest part at tip Orbicular – orb shaped (length is roughly the same as width, round) Reniform – flattened orb, wider than its length (kidney shaped) Cordate – (heart shaped) notch at base Obcordate – notch at tip Deltoid – triangular (wide base) Cuneate – opposite of deltoid, triangular (skinniest at base, wide fan at tip) Rhomboidal – diamond shaped (pointier in middle than elliptical) Falcate – feather, swooping tip Lobes – shaped like a human hand, maple leaf Palmate Pinnatisect Hastate – 3 lobes, 2 at base at right angles, morning glory Sagitate -...