Welcome to the Orchid Board!
Somebody has a lot of reading in front of him!
Most of the plants you mention are pretty easy to grow in the summer. Here are a few suggestions:
D. Nestor 'NN'
Read about Dendrobium nobile hybrids. They have different winter rest requirements from some orchids. They should be watered and fertilized heavily when they are making new growths. About the end of July stop fertilizing completely but keep watering until growths are mature. Then stop watering and put in a cool, bright spot for a couple of months.
Dendrobium kingianum
Read about this one, too. It likes to get quite cool and dry, and be very sunny, in winter to set buds properly.
Den. (Emma White x Waipahu Pink)
Den. Violet Yamaji 'Nalo'
Den. Emma White 'Mutation'
Den. Burana Emaron Gold
Read about Dendrobium phalaenopsis or Den phal hybrids. They are not hard to grow when you understand them. They like bright light, warm temperatures and regular watering all year long. They do best if allowed to dry out between waterings, but not for long.
Phal. 'Silver Light'
Phal. Benedict Masson x Dtps Ox Firebird
Phals are low-light plants. They grow all year and like warm temperatures. They do well in bright shade near a window, and need no direct sun. They should be watered heavily, then allowed to dry. There is a great thread on Phals here:
The Phal abuse ends here.
Carmelas Phals come potted in sphagnum moss and are usually due for repotting ASAP.
Epc. Middleburg 'Maj' (in bloom)
Blc. Hawaii Stars 'Pink Lace'
Iwanagaara Appleblossom 'Carmela'
Blc. Haruko Kanzaki 'Volcano Queen'
Pot. (Miya's Radience x Fred Stewart) 'Carmela'
Blc. Erin Kobayashi 'Amy Chen'
Blc. Golf Green 'Hair Pig'
Bc. Punakea 'Lee'
Pot. Mario Lanzo x Pot. William Farrell 'Pastel Parade'
Blc. Rustic Spots 'H & R'
Blc. Lawless Zauberflote 'Carmela'
Epi. Kauai White 'Carmela'
These are all in the Cattleya alliance and can be grown similarly. They like brighter light than most other orchids. They like warm temperatures while growing, but tolerate fairly cool night temperatures in the winter, when they aren't as active. They like to be watered heavily, then allowed to become dry between waterings. It is better to let them go another day between watering if you are not sure. It is also better not to overwater them in winter. How long it takes to dry out depends on your weather, humidity and the size of the pot. The Epidendrum Kauai White will prefer much more sun than the others, but in far north Minnesota, they will all like lots of sun. Take care not to burn them by moving them into too much sun too fast.
Ornithophora radicans
This is a cute little plant that doesn't like to dry out much. It likes bright shade to dappled sun. Soak it, then let it dry. Did it come in a pot or mounted on a piece of tree fern? Mounts need watering every day. You can dip a mount in water to water it.
Mtssa. Dark Star 'The Orchidworks'
Milt. Lennart Karl Gottling 'Hula Skirt'
You are now introduced to the wide world of orchid name confusion. Botanists have been changing names of things. What many people call "pansy faced Miltonias", like your Lennart Karl Gottling, are now in genus Miltoniopsis. They don't like to dry out. Pansy orchids require cool growing conditions. I think somebody in Minnesota should be able to do well with them, but read here on Orchid Board about Miltoniopsis. Orchids still called Miltonia are warmer growing plants.
The hybrid genus Miltassia is a cross between two genera, Miltonia and Brassia. But its name has now been changed to Bratonia. So if you search on this plant you will find both names used. In any event, Dark Star's ancestry is warmer-growing Miltonias. It will grow well with your Cattleyas, but it prefers not to go completely dry between waterings. It will also use a lot more water than the Cattleyas.
V. Yano Blue 'Ploenpit'
Vandas need a lot of water. They like warm temperatures, and are best kept over 50 F / 10C. If yours is potted, it should just dry out between waterings. If it is bare-root, you will need to wet the roots thoroughly every day. Vandas like more light than even Cattleyas. They should adapt to full Minnesota summer sun without problems. Move it gradually into more and more light. If the leaves develop fine linear wrinkles you are not watering enough. They should be making new leaves throughout warm weather. If you are fertilizing enough, there will be a 1 centimeter / 0.5 inch wide band of light green tissue at the base of emerging leaves.
Maxillaria tenuifolia
This also likes a lot of water and sun.
Epi. porpax
This is a bright shade plant. It should not dry out for any length of time. Did it come mounted on a piece of tree fern? Water it every day.
Check your city water supply water quality report online. If your total dissolved solids are under about 200 you can use tap water for your orchids. Otherwise save rain water, or use reverse osmosis water.
Orchids need fertilizer, but not a lot. Most of yours will do fine with a 20-20-20 with micronutrients at 1/8 to 1/4 teaspoon per gallon once a week. The Vanda will prefer more, at least 1 teaspoon per gallon every 3-4 days. Most orchids only need fertilizer once a month or so in the winter when they aren't growing much. The Nestor needs a fertilizer vacation from August through maybe March.
There is a Search function in the top maroon menu bar. If you input the name of a plant you will probably find a lot of threads dealing with it.
Good luck!
New - meet my orchids
that's a lovely little collection you have started!
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