Hohenbergiopsis guatemalensis
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Hohenbergiopsis guatemalensis |
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| Hohenbergiopsis guatemalensis | ||||||||||||
| ( LBSm. ) LBSm. & Read |
Hohenbergiopsis guatemalensis is the only plant species of the genus Hohenbergiopsis from the subfamily Bromelioideae inthe bromeliad family (Bromeliaceae).
description
Appearance and leaf
The funnel or cistern bromeliad Hohenbergiopsis guatemalensis grows epiphytically as a perennial herbaceous plant . It is a relatively large species with funnel diameters of up to 1 meter, which reaches heights of growth of 0.7 to 1 meter with the inflorescence. Large amounts of water often collect in the leaf funnels.
The coarse, parallel-veined, broad-ruler, usually up to 60 cm long, green or red leaves have a sharply toothed leaf edge (like almost all species of the Bromelioideae, they are reinforced) and end in an approximately 1 cm long spike tip. Suction scales are located on both the top and bottom of the leaf.
Inflorescence, flower and fruit
In relation to Hohenbergia species, the inflorescence only slightly exceeds the leaf funnel. The thick, woolly hairy inflorescence stem is shorter than the rosette leaves. The tile-like overlapping on the inflorescence stem bracts (bracts) are wide-elliptic pointed and piercing. The handsome, relatively short-lasting, almost piston-shaped, cylindrical, approximately 20 cm long inflorescence (inflorescence) is composed of cone-shaped, ellipsoidal, spiked partial inflorescences and contains many flowers. The approximately 18 cm long bracts are long pointed. There are no flower stalks.
The radial symmetry , threefold flowers have a length of about 1 cm. The three oval sepals with a length of 4 to 8 mm are fused into a short tube and have a pointed tip. The three purple-colored petals are free above the ovary . In contrast to the genus Hohenbergia and most species of the subfamily of the Bromelioideae, the petals have no scales (ligula) at their base . There are two circles with three stamens each. The stamens have grown together to form a tube, this is an exception within the family. The pollen grains are united in a tetrad; in Hohenbergia the pollen grains are single. The ovary is subordinate.
The flower formula is:
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There are berries formed.
distribution
The distribution area of Hohenbergiopsis guatemalensis extends from southern Mexico to Guatemala . It thrives in mountain rainforests as well as in cloud and cloud forests at altitudes between 800 and 2000 meters. For a long time it was only known from the Tactic type , on the road to Tamaha in Alta Verapaz in Guatemala, where around 30 plants were still growing in 1997.
Systematics
This species was in 1941 under the name Hohenbergia guatemalensis of Lyman Bradford Smith in Lilloa , 6, pp 282 firstdescribed . The characteristics, which differed greatly from the other species of the genus Hohenbergia, made it necessary to separate this species and establish a new genus Hohenbergiopsis for it. This was done by Lyman Bradford Smith and Robert William Read in Phytologia , 33 (7), 1976, p. 440. The generic name Hohenbergiopsis refers to the similarity with the genus Hohenbergia . The specific epithet guatemalensis refers to the only place where this species was found in Guatemala for a long time.
swell
literature
- Werner Rauh : Bromeliads - Tillandsias and other bromeliads worthy of culture , Verlag Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-6371-3 ( Hohenbergiopsis on p. 384–385)
Individual evidence
- ↑ Harry E. Luther: An Alphabetical List of Bromeliad Binomials , 2008 ( Memento of the original dated February 2, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. in The Marie Selby Botanical Gardens , Sarasota, Florida, USA. Published by The Bromeliad Society International .
- ↑ A. Espejo-Serna, AR López-Ferrari, I. Ramírez-Morillo, BK Holst, HE Luther & W. Till: Checklist of Mexican Bromeliaceae with Notes on Species Distribution and Levels of Endemism , In: Selbyana , Volume 25, Issue 1, 2004, p. 46.
- ↑ A. Espejo Serna et al. : Bromeliad Flora of Oaxaca, Mexico: Richness and Distribution . In: Acta Botanica Mexicana, pp. 71–147 (2007)
- ^ The 1997 IUCN red list of threatened plants , page 629
- ↑ Jason R. Grant An Annotated Catalog of the Generic Names of the Bromeliaceae , In: The Marie Selby Botanical Gardens, 1998. (Origin of the generic names in the family of the Bromeliaceae in English)
Web links
- Hohenbergiopsis guatemalensis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Romand-Monnier, F., 2009. Retrieved April 10, 2014.