March
Transcription
March
Cactus Comments New York Cactus and Succulent Society est 1962 Next Meeting Thursday, March 21st, 2013 6-7:45 pm 331 Madison Ave (near 43rd St) 7th Floor New York, NY www.nycss.org Cacti and Succulents for Beginners This meeting will introduce a foundation for beginner cacti and succulent owners. We will cover general plant care and which plants make good starters. March 2013 UPDATES Attention Members! Please help make our next meeting more interactive by sending beginner cacti and succulent suggestions to [email protected]. What has worked well for you in the past? We would like to know. We’re now on facebook! Like us at http://www.facebook.com/newyorkcactusandsucculentsociety Members are encoraged to bring in examples of their “beginner plants.” Guests are always welcomed! Membership Joining NYCSS gives you information packed monthly meetings, talks from experts and amateur enthusiasts, demonstrations, slide shows, trips, and our monthly newsletter, Cactus Comments. The 10$ annual dues covers everyone in your household, from September to June. Mail membership checks payable to Richard Stone 3777 Independence Ave. Apt 12C Bronx, NY 10463 Officers & Board of Directors: President and Editor: Stephanie Ciparis •[email protected] Vice President: Ivan Black Vice President and Secretary: Richard H. Stone Treasurer: Norman Bobrow Webmaster: Suzanne Bernard •[email protected] Photo of Deb Donaldson’s Mammillaria rhodantha pringlei at the Philadelphia flower show. Directors Ivan Black, MD Norman Bobrow Carol Smith Lazaro Marrero •[email protected] Contents Updates.........................................1 Whitesoloanea........................................2 Ceropegia ..................................................2 Upcoming Events....................................4 Photo of Dr. Barad’s Second Place wining Echeveria setosa ciliata at the Philadelphia flower show. 1 GENUS SPOTLIGHT: WHITESLOANEA Described in 1937 by Emilio Chiovenda and named after Alain C. White and Boyd L. Sloane, two American authors of important books on euphorbias and asclepiads. This monotypic genus with a compact four ribbed single erect stem, is to be found only in Somalia. The shape of this strange plant looks somewhat like a small Astrophytum myriostigma quadricostatum. It is thought to be one of rarest succulents and sought after by succulent enthusiasts. Its protected by the locals, being some kind of sacred medicine. It is said that the locals will kill you, if you take it with you. Some sources claims it is extinct in the wild due to war and farming. GENUS SPOTLIGHT: CEROPEGIA The genus Ceropegia belongs to the Asclepiadoideae sub-family within the family Apocynaceae. There are between 160 and 200 species worldwide and they range widely from the Canary Islands, Africa, Madagascar, Arabia, India, Sri Lanka, southern China, Indonesia, the Philippines, New Guinea and Queensland. Ceropegia was named by Carl Linnaeus, who first described this genus in volume 1 of his Species plantarum, in 1753. Linnaeus thought that the flowers looked like a fountain of wax. The name of the genera was derived from this observation: ‘keros’ meaning wax and ‘pege’ meaning fountain. They have many common names including lantern flower, parasol flower, parachute flower, bushman’s pipe, string of hearts, snake creeper, wine-glass vine, rosary vine, and necklace vine. The stems are vining or trailing in most species, though a few species from the Canary Islands have erect growth habits. Among some species, such as Ceropegia woodii, the nodes swell, and the roots expand to form enlarged tubers beneath the soil surface. The leaves are simple and opposite, but they can be rudimentary or absent. In certain succulent species, the leaves may also be thick and fleshy. Flowers occur either singly or in umbel-like clusters and have a tubular corolla twice as long as its diameter and longer than the 5 lobes. The base of the tube is usually inflated and the tube may have down ward orientated hairs on the inside and hairs on the outside and at the edges of the lobes. Colors include reds, purples, yellows, greens and mixtures of these. Flies entering the corolla may become trapped by the hairs until the flower wilts. The tips of the lobes are fused together to form a cage-like flower structure in many species, but are open in others. The flowers emit an odor that attracts flies.The angle of the flower hairs trap the flies in the flower covering the flies with the flowers pollen. This technique helps pollenate the Ceropegia flowers, as the flies are kept from escaping until the hairs wither. 2 Ceropegia Continued Ceropegia sandersonii (1)is a species of flowering plant, native to Mozambique, South Africa, and Swaziland. Common names are parachute plant. It is an evergreen, prostrate, slender twiner, nearly hairless, with sparse, succulent leaves. The roots form narrowly fusiform clusters. The distinctive greenish white funnelshaped flowers are 5–7 cm long and attach to a delicate stalk. 1. Ceropegia simoneae (2) this species hails from Madagascar. The succulent twining stems are thin but produce large leaves. The flowers are large and the petals fan out and do not unite like with most other Ceropegia. They have an almost square bulbous base, cream with maroon spots then a slim tube almost completely covered in maroon spots then a small flare out at the top with long thin petals waving like tentacles, all covered in spots. 2. 3. Ceropegia woodii (3) is native to South Africa, Swaziland, and Zimbabwe. It is sometimes treated as a subspecies of the related Ceropegia linearis, as C. linearis subsp. woodii. Common names include chain of Hearts, collar of hearts, string of hearts, rosary vine, hearts-on-a-string sweetheart vine. The species was discovered in 1881 by John Medley Wood, curator of the Durban Botanic Garden, hanging from rocks on Groenberg in Natal at an altitude of 1800 feet. Thirteen years later, in 1894, he sent a living plant to Kew. Its trailing habit, neat appearance and tolerance of neglect, made it an ideal plant for hanging baskets. The plant that had been sent to Kew subsequently flowered, providing the material for Plate 7704 of Curtis’s Botanical Magazine published in 1900. The prolific botanical artist Matilda Smith prepared the plate, while the Kew taxonomist N. E. Brown produced a detailed description, naming the plant after its discoverer. It is an evergreen succulent trailing vine that grows to 10 centimetres in height and spreads to reach up to 2–4 metres in length. Its leaves are shaped like hearts, about 1-2 cm wide and long. When exposed to sufficient light they have a deep green colour; under insufficient lighting the leaves are pale green. With age it develops a woody caudex at its base. The roots, and occasionally the stems, will often develop tubers. 3 Ceropegia stapeliiformis (4) is native to South Africa and Swaziland. Common names include Serpent Ceropegia, Snake creeper, and Slangkambro. 4. Ceropegia stapeliiformis is a prostrate, creeping, trailing or climbing succulent creeper with fibrous roots and has clear sap. The leaves are minute and rudimentary, soon falling off the stems. The flowers are 5-7 cm long and have a distinctive funnel-shape with a greenish white colour that is spotted or streaked with maroon. The petals surrounding the mouth are free-spreading, reflexed and fringed with hairs. The fruit a follicle with tubercles. This species is usually found rooted in leaf mould under the protection of shrubs. The subspecies serpentina, which was initially described as Ceropegia serpentina by E. A. Bruce, has a distribution which ranges from Northern KwaZulu-Natal and Swaziland to Gauteng, Mpumalanga and Limpopo provinces of South Africa, where it occurs in scrub bush. The flowering time from December to March. UPCOMING EVENTS THE FLOWER SHOW March 2 – March 10, 2013 Pennsylvania Convention Center 12th & Arch Streets Philadelphia, PA 19107-2299 General Admission - $27 http://www.theflowershow.com/ LONG ISLAND REPTILE EXPO Sunday, March 17, 2013 9AM to 3PM Huntington Hilton Hotel 598 Broad Hollow Rd. (Rt. 110) Melville, NY 11747 $9/Adults http://reptileexpo.com/index.html SPRINGFEST GARDEN SHOW CONNECTICUT CACTUS & SUCCULENT SOCIETY March 14-17th 2013 30th Annual Show & Sale 2013 Springfest Garden Show is held Saturday, April 6 -10 AM to 5 PM each year at the Sussex County Sunday, April 7 -10AM to 4 PM Fairgrounds Naugatuck Valley Community 37 Plains Rd., Augusta, NJ 07822 College http://www.njstatefair.org/images/ 50 Chase Parkway image/2013_coupon.jpg Waterbury, CT (exit 18 off I-84) http://www.ctcactusclub.com/showsale2013.aspx SUBMISSION OF COMMENTS FOR THE NEWSLETTER OR SUGGESTIONS FOR FUTURE MEETINGS, ETC. Comments, stories or information for our newsletter can be submitted to [email protected] NYCSS w w w.nycss.org 4