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It is likely that Spruce discovered the plant on a collecting trip in Ecuador in 1857. [2] Salvia sprucei is a many-branched plant that reaches up to 12 feet (3.7 m) high and 6 feet (1.8 m) wide. The leaves are ovate and vary in size, growing up to 3.5 inches (8.9 cm) long and 1.5 inches (3.8 cm) wide.
A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops. The thermal switch may be a bimetallic strip , often encased in a tubular glass bulb to protect it from dust or short circuit .
A small circuit breaker typically has a manual control lever to switch the circuit off or reset a tripped breaker, while a larger unit may use a solenoid to trip the mechanism, and an electric motor to restore energy to springs (which rapidly separate contacts when the breaker is tripped).
Picea breweriana, known as Brewer spruce, [2] [3] Brewer's weeping spruce, or weeping spruce, is a species of spruce native to western North America, where it is one of the rarest on the continent. The specific epithet breweriana is in honor of the American botanist William Henry Brewer .
Picea obovata, the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia. It is a medium-sized evergreen tree growing to 15–35 m tall, and with a trunk diameter of up to 1.5 m, and a conical crown with drooping ...
The leaves are needle-like, the longest of any spruce, 3–5 cm long, rhombic in cross-section, mid-green with inconspicuous stomatal lines. The cones are broad cylindric-conic, 9–16 cm long and 3 cm broad, green when young, maturing buff-brown and opening to 5–6 cm broad 5–7 months after pollination; the scales are stiff and smoothly ...
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).
Picea glauca (Moench) Voss., the white spruce, [4] is a species of spruce native to the northern temperate and boreal forests in Canada and United States, North America.. Picea glauca is native from central Alaska all through the east, across western and southern/central Canada to the Avalon Peninsula in Newfoundland, Quebec, Ontario and south to Montana, North Dakota, Minnesota, Wisconsin ...