By the calendar, summer is only a third of the way over. But flowers are reaching their crescendo in the gardens at Point Reyes Flowers, whose arrangements are featured in Gordon Bryan’s vases at downtown’s new Bar Auklet. Dahlias of many colors are the stars of the gardens, while perennial sunflowers tower at nearly 10 feet high. Springtime’s sweet peas are still blooming, due to unseasonably cool temperatures. Golden-yellow Gina Lollobrigida and deep-red Mr. Lincoln…