morphological diversity in philippine hoyas
DESCRIPTION
A brief overview on the diversity of 13 Philippine porcelain plants.TRANSCRIPT
![Page 1: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/1.jpg)
Morphological Diversity in Philippine H yas
Joald G. CalpoBS Biology Major in Systematics
06 August 2008
![Page 2: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/2.jpg)
This talk will…
…discuss the variations in floral and vegetative traits of Philippine wax plants
…show the clustering of Hoya based on morphological traits
…open minds on Hoya awareness and the opportunities it caters
![Page 3: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/3.jpg)
• Very little study has been made on the medicinal qualities of the genus
• New species, varieties and hybrids are always of great interest to growers and collectors
Prospects of Philippine Hoyas
![Page 4: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/4.jpg)
•Collectors are always interested in obtaining new species
•New species command a higher price
Prospects of Philippine Hoyas
![Page 5: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/5.jpg)
The Genus Hoya
• Wax plant• Family Asclepiadaceae• Pollen in gelatinous
masses• Most are epiphytic
vines with milky sap• Can be found at all
altitudes
![Page 6: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/6.jpg)
The Hoya flower
Parts of a Hoya corona Parts of a Hoya pollinarium
![Page 7: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/7.jpg)
Distribution of Philippine Hoyas
![Page 8: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/8.jpg)
Distribution of Philippine Hoyas
![Page 9: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/9.jpg)
Meet our Philippine H yas
![Page 10: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/10.jpg)
Hoya bicolor Kloppenburg
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 11: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/11.jpg)
Hoya buotii Kloppenburg
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 12: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/12.jpg)
Hoya coriacea Blume
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 13: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/13.jpg)
Hoya crasssicaulis Elmer ex Kloppenburg
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 14: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/14.jpg)
Hoya cumingiana Decaisne
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 15: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/15.jpg)
Hoya densifolia Turczaninow
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 16: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/16.jpg)
Hoya meliflua (Blanco) Merrill
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 17: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/17.jpg)
Hoya merrillii Schlechter
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 18: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/18.jpg)
Hoya mindorensis Schlechter
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 19: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/19.jpg)
Hoya obscura Elmer ex Burton
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 20: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/20.jpg)
Hoya pubicalyx Merrill
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 21: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/21.jpg)
Hoya siariae Kloppenburg
Photos of Hoya flowers from Dr. S.V. Siar
Photomicrographs of pollinarium and corona from Dr. R.D. Kloppenburg
![Page 22: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/22.jpg)
Floral Diversity in Philippine H yas
![Page 23: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/23.jpg)
Hoya siariae
Corona Diversity in Hoyas
Hoya bicolor Hoya buotii Hoya cumingiana
Hoya crassicaulis Hoya densifolia Hoya meliflua Hoya merrillii
Hoya mindorensis Hoya obscura Hoya pubicalyx
Hoya coriacea
![Page 24: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/24.jpg)
Hoya pubicalyx Hoya siariae
Corona Diversity in Hoyas
Hoya bicolor Hoya buotii Hoya cumingiana
Hoya crassicaulis Hoya densifolia Hoya meliflua Hoya merrillii
Hoya mindorensis Hoya obscura
Hoya coriacea
![Page 25: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/25.jpg)
Hoya obscura Hoya siariae
Corona Diversity in Hoyas
Hoya bicolor Hoya buotii Hoya cumingiana
Hoya crassicaulis Hoya densifolia Hoya meliflua Hoya merrillii
Hoya mindorensis Hoya pubicalyx
Hoya coriacea
![Page 26: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/26.jpg)
H. siariae
Pollinarium Diversity in Hoyas
H. bicolor H. buotii H. coriacea H. cumingiana H. densifolia
H. meliflua H. merrillii H. mindorensis H. obscura
H. crassicaulis
H. pubicalyx
![Page 27: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/27.jpg)
H. siariae
Pollinarium Diversity in Hoyas
H. bicolor H. buotii H. coriacea H. cumingiana H. densifolia
H. meliflua H. merrillii H. mindorensis
H. crassicaulis
H. pubicalyxH. obscura
![Page 28: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/28.jpg)
Floral Diversity in Hoyas
•Measurements of corona, pollinarium and retinaculum showed wide variations
![Page 29: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/29.jpg)
2.16 1.64 1.12 0.60 0.08
H. bicolor
H. crassicaulis
H. densifolia
H. siariae
H. cumingiana
H. mindorensis
H. merrilllii
H. obscura
H. buotii
H. carnosa
H. meliflua
H. coriacea
H. pubicalyx
Coefficient
Genetic relationships of 13 Philippine Hoya species using UP- GMA
![Page 30: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/30.jpg)
Floral Diversity in Hoyas
•H. pubicalyx and H. coriacea had the largest value for most traits
•H. obscura had the lowest values for most traits
![Page 31: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/31.jpg)
Vegetative Diversity in Hoyas
• Venation pattern can either be pinnately or palmately netted
•Species can be delineated through the different characters of blade
![Page 32: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/32.jpg)
•Morphometrics
•Tree Reconstruction
•Historical Biogeography
Uses of morphological diversity
Hoya phylogeny
![Page 33: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/33.jpg)
Status in World Horticulture
• Most of the hoyas sold worldwide have Philippine origins.
• Positive indication of the diversity, rarity and world class beauty of Philippine hoyas
![Page 34: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/34.jpg)
Status in World Horticulture
HOYA SPECIES Price range ($)
H. pubicalyx 7.50-15.00
H. mindorensis 7.50-15.00
H. siariae 12.00-25.00
H. buotii 12.00-25.00
H. bicolor 12.00-25.00
H. paziae 15.00-20.00
H. imperialis 25.00-75.00
H. meliflua 9.50-12.00
![Page 35: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/35.jpg)
Future of Philippine Hoya
Philippines possess the richest and most diverse range of hoya species in the world
Philippine hoyas have created a niche in the global hoya industry
![Page 36: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/36.jpg)
Diversity in Philippine Hoyas…
... is seen both in floral and vegetative traits… provided clustering based on degree of
similarity… caters several opportunities for scientists,
enthusiasts and ordinary household
![Page 37: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/37.jpg)
Time to act now and capitalize on the
popularity of Philippine H yas!
![Page 38: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/38.jpg)
References
RAMNEL, D. 2005. Useful Plants of the Philippines: A Scienific Guide to Modern Botanical Medicine Volume 1. Quezon City: C and E Publishing Inc.
SIAR, S.V. et al. 2007. “Corona and Pollinarium diversity in Philippine Hoyas” Asia Life Sciences 16 (2), pp 195- 208.
SIAR, S.V. 2005. Philippine Hoyas. Los Baños, Laguna: PCARRD. 23 p.
WANNTROP, L. et al. 2006. “Towards a Monophyleic Hoya (Marsdenieae, Apocynaceae): Inferences from the Chloroplast trnL Region and the rbcL- atpB Spacer” Systematic Botany 31(3).
pp 586- 596.
![Page 39: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/39.jpg)
Acknowledgement
Dr. Simeona V. Siar, Institute of Plant Breeding
Dr. Robert Dale Kloppenburg
Professor Annalee C. Soligam- Hadsall, Institute of Biological Sciences
Miss Mary Ann Cajano, Botanical Herbarium, Museum of Natural History
Miss Ercie Vicencio, Institute of Plant Breeding
![Page 40: Morphological Diversity in Philippine Hoyas](https://reader038.vdocuments.us/reader038/viewer/2022102504/5465f0d5b4af9f301e8b4ea7/html5/thumbnails/40.jpg)
Thank y u!