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MORFOLOGI BUNGA 2
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Bagian Bagian Bunga Pedicellus Receptaculum Periantium / Perigonium
9/17/2018 Bagian Bagian Bunga Pedicellus Receptaculum Periantium / Perigonium Androecium Stamen Gynaecium Pistillum
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9/17/2018 Bagian-Bagian Bunga
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9/17/2018 stigma stamen Staminal colum petal calyx epicalyx pedicellus
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The Main Part of a Flower Typically has Four Parts
9/17/2018 The Main Part of a Flower Typically has Four Parts
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9/17/2018 Kelopak Bunga First series; the outermost whorl or spiral of a typical flower (asexual/sterile) Biasanya gugur pada saat bunga berkembang menjadi buah
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Ada yang persisten seperti pada jambu, terong
9/17/2018 Ada yang persisten seperti pada jambu, terong Lobus calyx (sepal) dapat membesar seperti pada Mussaenda frondosa Pada Malvaceae (Hibiscus) terdapat epicalyx
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petal Staminal colum stylus calyx ovarium ovulum reseptculum
9/17/2018 petal Staminal colum stylus calyx ovarium ovulum epicalyx reseptculum pedicellus
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Tipe Kelopak Berlekatan (gamosepalus) Lepas (polysepalus)
9/17/2018 Tipe Kelopak Berlekatan (gamosepalus) Berbagi, bercangap, berlekuk Lepas (polysepalus)
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9/17/2018 Corolla Petals (corolla) – Second series; the second whorl or spiral of a typical flower (asexual/sterile); petals alternate with sepals Perianth – collective term for calyx + corolla
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Corolla Terdiri atas petal yang:
9/17/2018 Corolla Terdiri atas petal yang: Berlekatan (Sympetalus, gamopetalus, monopetalus) Limbus Faux tubus Lepas (Choripetalus, dialypetalus,polypetalus) Tidak berpetal (Apetalus)
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Tipe corola Simetri Radial (Actinomorphus)
9/17/2018 Tipe corola Simetri Radial (Actinomorphus) Bintang (rotatus/stellatus) Tabung (tubulosus) Terompet (hypocrateriformis) Mangkuk (urceolatus) Corong (infundibuliformis) Lonceng (campanulatus) Simetri Bilateral (Zygomorphus) Bertaji (calcaratus) Berbibir (Labiatus) Bentuk kupu-kupu (pappilionaceus) Bertopeng (personatus) Bentuk pita (ligulatus)
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Perhiasan bunga (periantium)
9/17/2018 Perhiasan bunga (periantium) Bunga Lengkap : Perhiasan bunga lengkap Bunga tidak lengkap: salah satu perhiasan bunga tidak ada Bunga sempurna : Hermaphrodit Bunga tidak sempurna : Uniseksualis Bunga Telanjang : tanpa perhiasan bunga Euphorbia pulcherrima
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Tenda bunga (perigonium)
9/17/2018 Tenda bunga (perigonium) Tidak bisa dibedakan antara sepal dan petal tepal Contoh : Michelia champaca (cempaka) Gloriosa superba (Kembang sungsang)
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Kelamin Bunga Hermaphrodit ♀♂ Uniseksualis ♀ atau ♂
9/17/2018 Kelamin Bunga Hermaphrodit ♀♂ Uniseksualis ♀ atau ♂ Mandul (Steril) jika pada bunga tidak terdapat alat kelamin Bunga tepi pada bunga matahari Mahkota bunga tepi Ovarium bunga tepi Mahkota bunga tabung Ovarium bunga tabung braktea
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Tipe Tumbuhan Berdasarkan Kelamin Bunga
9/17/2018 Tipe Tumbuhan Berdasarkan Kelamin Bunga Monoecious: Berumah satu (bunga jantan dan betina ada pada satu tumbuhan) Jagung (Zea mays) Dioecious: Berumah dua (bunga jantan dan betina terpisah pada dua individu tumbuhan Salak (Zalacca edulis) Polygamus: Jika pada satu tumbuhan terdapat bunga jantan, bunga betina dan bunga banci sekaligus Pepaya (Carica papaya)
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Simetri Bunga Asimetris : Zygomorphus / Simetri bilateral ( ↑ )
9/17/2018 Simetri Bunga Asimetris : Canna, Delonix regia Zygomorphus / Simetri bilateral ( ↑ ) Clitoria ternatea Datura metel Actinomorphus / Simetri radial ( ☼ ) Solanum torvum
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Receptaculum Sering termodifikasi menjadi
9/17/2018 Receptaculum Sering termodifikasi menjadi Antofor (Anyelir / Dianthus caryophyllus) Androfor (Gynandropsis pentaphylla) Ginofor (Nelumbium nelumbo) Adroginofor (Passiflora quadrangularis) Diskus (Citrus)
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9/17/2018 Corona Anther Style Sepal Petal
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Tipe bunga berdasarkan reseptakulum dan perhiasan bunga
9/17/2018 Tipe bunga berdasarkan reseptakulum dan perhiasan bunga Hipogynus Casia siamea Perigynus Lagerstroemia sp Epigynus Centela asiatica
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Stamen Stamen(s) (androecium) –
9/17/2018 Stamen Stamen(s) (androecium) – Third series; the third whorl or spiral; the male reproductive unit; stamens alternate with petals and are opposite the sepals
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Ada tiga bagian Tangkai sari (filamentum) Kepala Sari (anthera)
9/17/2018 Ada tiga bagian Tangkai sari (filamentum) Kepala Sari (anthera) Ruang /Kotak sari (theca) Serbuk sari (pollen) Penghubung kotak sari (Connectivum)
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Letak Stamen pd Bunga Pada reseptaculum (jeruk) Diatas kelopak (mawar)
9/17/2018 Letak Stamen pd Bunga Pada reseptaculum (jeruk) Diatas kelopak (mawar) Diatas corolla (heliotropium indicum)
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Jumlah Benang Sari Banyak (Myrtaceae)
9/17/2018 Jumlah Benang Sari Banyak (Myrtaceae) Dlm Dua lingkaran (2x jumlah petal) Sama banyak dengan petal Epipetal Episepal Didynamus (Labiatae) Tetradynamus (Crucyferae)
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Tangkai Sari / Filamentum
9/17/2018 Tangkai Sari / Filamentum Monadelphus (satu berkas) Hibiscus rosasinensis Diadelphus (dua berkas) papilionaceae / fabaceae
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Kepala Sari Duduk pada tangkai Basifixus Adnatus Versatilis Graminae
9/17/2018 Kepala Sari Duduk pada tangkai Basifixus Adnatus Versatilis Graminae
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Membukanya kepala sari
9/17/2018 Membukanya kepala sari Celah membujur (longitudinal dehiscent) Celah melintang (transversal dehiscent) Lobang pada pangkal (poro dehiscent) Katup (valvi dehiscent)
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istilah Staminodium (benang sari yang steril)
9/17/2018 istilah Staminodium (benang sari yang steril) Staminodium petaloid (benang sari yang termodifikasi menjadi petal) Staminal colum (tangkaisari bersatu berbentuk tabung) Staminodes – sterile stamens (they do not produce pollen); variable in form and size, may be petaloid or secrete nectar Epipetalous – stamens adnate to corolla
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9/17/2018 Hypanthium (floral cup) – a structure derived by the adnation of the perianth bases and stamens. It is variously shaped.
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9/17/2018 Putik Carpel(s) (gynoecium) – Fourth series; the terminal or centermost component; the female reproductive unit; 1 to many separate or fused carpels comprise a gynoecium Kepala Putik (stigma) Tangkai Putik (stilus) Bakal Buah (ovarium) Bakal Biji Plasenta
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Carpels more than 1 per flower:
9/17/2018 Carpels 1 per flower Carpels more than 1 per flower: carpels distinct (apocarpous gynoecium) carpels connate (syncarpous gynoecium) Pistil – equivalent to gynoecium; formed from one or more carpels Simple pistil – a gynoecium with one carpel Compound pistil – a gyneocium with two to many separate or fused carpels (it combines both apocarpous and syncarpous gynoecia)
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Kepala Putik Berbagai bentuk:
9/17/2018 Kepala Putik Berbagai bentuk: Benang : jagung Bulu ayam : padi Bulat : jeruk Gynostegium: Kepala Putik bersatu dengan stamen Callotrophis gigantea
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Bakal Buah Berdasarkan letak bakal buah terhadap dasar bunga
9/17/2018 Bakal Buah Berdasarkan letak bakal buah terhadap dasar bunga Superus Semiinferus Inferus Berdasarkan jumlah ruang Beruang satu : pepaya Beruang dua : kubis Beruang tiga : karet Beruang banyak: duren
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9/17/2018 Plasenta Placentation – the arrangement of ovules within the ovary plasenta (tembuni) PLACENTATION TYPES: Marginal Axile – only found in a syncarpous gynoecium; the placental area of the ovary is attached to an axis derived from the connate margins of the component carpels – such an ovary is divided into two or more locules by septa. The ovules are borne along the central axis. Parietal – only found in a syncarpous gynoecium; the placental areas are attached to the side walls of the ovary (or extrusions of the wall) – such an ovary usually has one locule (therefore no septa). NOTE: Your textbook considers marginal placentation a type of parietal placentation; we won't in this course. Sentrales Aksilaris
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9/17/2018 PLACENTATION TYPES Marginal – only found in an apocarpous gynoecium; the ovules are attached to the folded margins of the carpel.
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9/17/2018 PLACENTATION TYPES Axile – only found in a syncarpous gynoecium; the placental area of the ovary is attached to an axis derived from the connate margins of the component carpels – such an ovary is divided into two or more locules by septa. The ovules are borne along the central axis.
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9/17/2018 PLACENTATION TYPES Parietal – only found in a syncarpous gynoecium; the placental areas are attached to the side walls of the ovary (or extrusions of the wall) – such an ovary usually has one locule (therefore no septa). NOTE: Your textbook considers marginal placentation a type of parietal placentation; we won't in this course.
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9/17/2018 PLACENTATION TYPES Apical – attachment of ovules to the top of the ovary (one locule, no septa) Basal – attachment of ovules to the botton of the ovary (one locule, no septa)
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9/17/2018 Free-central – attachment of ovules to a free-standing central column in a syncarpous unilocular ovary (one locule, no septa)
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9/17/2018 Insertion Insertion (the method of attachment of one structure to another)
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9/17/2018 Insertion SUPERIOR OVARY – Ovary situated ABOVE the point of attachment of the perianth and androecium and wholly free from them (stamens may be adnate to corolla) Hypogynous flower – a flower with perianth and androecium arising from below the ovary (gynoecium). Perigynous flower (if hypanthium not adnate to ovary) – a flower with perianth and androecium arising from a floral cup that is NOT adnate to the ovary. Remember – the ovary is still superior!
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9/17/2018 Insertion INFERIOR OVARY – Ovary is BELOW the point of attachment of the outer flower parts (perianth and androecium). In other words, the outer floral whorls are adnate to the ovary. A hypanthium (floral cup) may or may not be present. Epigynous flower (if hypanthium adnate to ovary) – a flower with perianth and androecium apparently arising upon the ovary (rather than the receptacle).
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Evolutionary Development of the Carpel
9/17/2018 Evolutionary Development of the Carpel What is a carpel? Basic unit of gynoecium The foliar, ovule – bearing unit of a flower that forms either all (apocarpous) or part (syncarpous) of the gynoecium. Leaflike megasporophyll with infolded or inrolled connate margins bearing one or more ovules on the inside.
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How can the number of carpels comprising a gynoecium be determined?
9/17/2018 How can the number of carpels comprising a gynoecium be determined? Count the stigmas Count the styles Count the lobes of the ovary Count the locules in the ovary Count rows of placentae Variation in fusion and closure of carpels from Walters and Keil, 1988, Vascular Plant Taxonomy, 3rd ed. Placentation types from Walters and Keil, 1988, Vascular Plant Taxonomy, 3rd ed.
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Correspondence between flower and fruit
9/17/2018 Correspondence between flower and fruit
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