Dendrobiums identify

The second one looks like the type of Dendrobium nobile hybrid you can find everywhere in full bloom during spring. You might find and ID in this photo gallery. http://www.yamamotodendrobiums.com/html/wholesale_plants.html

 

The growth pattern of the Dendrobium is absolutely bizarre and seems to indicate that the dominant bud that should have started the new season's growth is dead. As a result the vegetative buds higher up in the stem were stimulated to grow. They show signs of being grown in light levels that are too low to produce robust growth, they look spindly and weak. Also, if the roots have died the plant can produce several keikis on the stem, be alert for the appareance of roots around the base of the new growths, this is normally a sign of damage to the main root system.

 

Yes I would move it to brighter light but not direct sunlight. This plant has been growing using its reserves so it is weakened. So accostum it gently to brighter light to avoid any burn. Also, autumn is a poor time for a plant to produce new growths, they are usually produced at the end of winter or early spring. My recommendation is to keep it warn to avoid losing the new growths. Next year, by this date you should be preparing to stop watering and feeding it, because these plants go into a rest period during the winter.

 

Keep watering the plant until the canes stop growing. When that happens reduce watering and fertilizer until you see new buds growing from the base of this years canes. Hopefully in time the plant will adapt its growing schedule to your local seasonal variations.

 

Dendrobium nobile hybrids are not that difficult to grow, but a bit tricky to bloom. My favorite, Den. Red Emperor, produces such nice flowers that I am happy if it only produces a few. The Internet is full of information on culturing these orchids.