The leaves may be showing off their rich autumn hues in New England and other parts of the country, but in sunny South Florida, fall means palm trees and the much-anticipated season opener at Palm Beach Modern Auctions. The company’s fully curated Sept. 24 Modern Art, Design & Decorative Arts sale is brimming with exceptional paintings and furniture by the most desired 20th-century and contemporary artists, with special additions that include a connoisseur’s collection of fountain pens and a luxurious 1988 Rolls-Royce Silver Spirit Mulsanne.The 461-lot auction opens with an extensive offering of modern furniture, highlighted by a collection of coveted Jacques Adnet (French, 1901-1984) creations. Adnet designed ultra-chic leather-covered furniture for Hermes and developed a signature style that endured through the 1950s.Adnet highlights include a pair of saddle-stitched leather, brass and hide lounge chairs and a double-door cabinet of ash, enameled steel and leather. Also noteworthy in the furniture section are a rare Philip and Kelvin Laverne dining table and a Fernand Dresse coffee table with turquoise wave motif.The demand for pedigreed, fresh-to-the-market modern and contemporary art will be well satisfied on Sept. 24, starting with two large original paintings by Jules Olitski. They include a 1982 acrylic on canvas titled LOST TRIBE and a 55 by 110-inch painting from 1978 titled VENUSIAN EXTASE-4.A vibrant and surreal 1989 Larry Rivers (American, 1923-2002) oil-on-canvas featuring people with tropical birds and foliage, is mounted to sculpted foamcore to render a three-dimensional effect. The signed 82 by 72-inch work is estimated at $15,000-$20,000.Four rare, signed Joan Miro (Spanish, 1893-1983) lithographs from a single collection will be offered, includingLes Deux Amix, published in 1969. Estimate: $20,000-$25,000.A ceramic plaque by Fernand Leger (French, 1881-1955) is from a circa-1950s edition of 250 and titled Les Acrobates. Previously in the artist’s own collection, it is initialed and stamped. Estimate: $15,000-$20,000.An arresting 46-inch-tall Somnambient sculpture by Harry Bertoia (American, 1915-1978) is comprised of 36 beryllium copper and brass rods and will convey with a Bertoia family certificate of authenticity. Estimate:$40,000-$60,000.It wouldn’t be a Palm Beach Modern event with a representation of Andy Warhol (American, 1928-1987). Among the Warhols in the auction is a 1972 signed silkscreen titled Electric Chair, #216 from an edition of 250. Its line of provenance includes The Andy Warhol Foundation. Estimate: $8,000-$12,000.Palm Beach Modern’s Sept. 24, 2016 auction will begin at 12 noon Eastern Time at the company’s exhibition center, 417 Bunker Rd., West Palm Beach, FL 33405. Preview: Mon.-Fri. from 10 a.m. to 5 p.m., and from 9 a.m. onward on auction day. Complimentary valet parking and a catered luncheon, snacks and beverages will be offered to all guests.All forms of bidding will be available, including absentee and live via the Internet through LiveAuctioneers.com. View the fully illustrated auction catalog online at www.LiveAuctioneers.com. Visit PBMA online atwww.modernauctions.com.