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硬Star-hair蕨类植物 (Thelypteris sclerophylla)

迈阿密戴德县的硬叶蛱蝶属. 图片来源: A. 罗森博格
描述
  • 全球排名: G4 -明显安全
  • 法律地位: N/A
  • 家庭: Thelypteridaceae
  • 状态: FL
  • 自然服务ID: 143177
  • 全国征集日期: 12/20/2021

一个地球, 常年, 硬邦邦的星毛蕨,有非常短的, erect stem and pinnate-pinnatifid fronds that can grow up to 50 cm in length with short petioles. 类似的, 阀杆, 复叶和叶柄都被叉状或星状毛所覆盖, 会让植物僵硬吗, 薄的感觉. 它的索里是圆的,生长在肥沃的叶下. The spores are dark brown in coloration with heart-shaped Gametophytes. Thelypteris sclerophylla occurs in Rockland Hammocks in Miami-Dade County, FL,但在大安的列斯群岛(古巴牙买加)也很常见, 伊斯帕尼奥拉岛, 和波多黎各), 西印度群岛, 以及中美洲和南美洲. 这是一种全球罕见的物种, 两个种群包含两个种群, small Miami-Dade preserves with 100-200 sporophytes held at HRD and 64 sporophytes (20% of these are large enough to sporulate and their fronds are greater than 20 m long) in FUH.

参与机构
更新
  • 01/31/2018

CREW has developed spore cultivation methods in vitro on a 1/2  Murashige and Skooge 1.5%的中.  与其他蕨类物种相比, T. scerlophylla was very slow to grow sporophytes but growth was better on soil than agar. 然而, nearly 18 months passed before a sporophyte even emerged ((Possley and Maschinski 2007).

Cultivation of this species in the nursery is relatively easy once the plants have acclimated to soil and ambient air and due to its sclerophyllous nature, it appears to not be as vulnerable to drying out as many other rare, 原生蕨类植物.  在仙童, we have met success at growing this plant by adding a 1:2 mix of perlite to our standard nursery mixture (contains peat and soil conditioner) with irrigation every 1-2 days and use of slow-release fertilizer granules.

  • 01/30/2018

Augmenting wild populations at FUH and HRD may be an option for outplanting.  If we only consider additional potential introduction sites within the historic range of T. sclerophylla, we would be limited to only a handful of Miami-Dade County preserves located within the 17 kilometers between occupied sites FUH and HRD. 包含适当栖息地的地点(成熟的吊床, 低光, 高湿度, limestone outcroppings) within this narrow geographic area include HBH, MSH, SPH, 次抢断, 和可能的现金, CASR, 和供应量.

  • 01/30/2018

Fairchilds ex situ collections are approaching 1/3 the side of the numbers in the wild, 截至2015年5月,该公司拥有49家工厂.  We hope to conduct an outplanting into suitable habitat and further safeguard the status of this species in 佛罗里达.

  • 01/30/2018

至少, continued annual monitoring of both Miami-Dade populations for health and sporulation, continued collection of spores from wild and ex situ for long term cryogenic storage at the NCGRP, 以及现有人口的增加, or reintroducing new ones to a suitable Miami-Dade habitat are all recommended steps to ensure the survival of this species.

  • 01/30/2018

在HRD和FUH, current management by Miami-Dade County Natural Areas Management (NAM) appears to be sufficient to maintain the population at current levels.  然而, this status of this species would be strengthened in South 佛罗里达 by augmenting current populations and/or introducing new ones within its historic range.

  • 01/23/2018

外来植物的入侵是一种严重的威胁 T.sclerophylla 包括迈阿密-戴德县的以下物种: Epipremnum pinnatum, Syngonium podophyllum, Schefflera actinophylla, Ardisia elliptica, 和其他人.

  • 01/23/2018

T. sclerophylla 能与一种同时出现的本地蕨类植物杂交吗 Thelypteris reptans, however, it is unclear whether this represents a threat to this species. A hybrid between these 2 taxa has been described from Cuba (Sanchez et al. Possley相信她也在佛罗里达观察过.  Material was sent to Alan Smith at US Berkeley for examination in 2014.

  • 01/23/2018

Vegetation management crews may have an accidental impact due to activities such as off target herbicide damage, 植被碎屑堆积, or the removal of non-native overstory species that can cause sudden increase in light and decrease in humidity.   The  off-site drainage or lowering of  the regional water table may also play a negative role as well.

  • 01/23/2018

虽然在成熟的吊床继承 T. sclerophylla 是不是平时发现不出问题, succession due to gap openings (from storms or weed removal) may pose a serious threat.

  • 01/23/2018

飓风会减少吊床的冠层覆盖, likely leading to increased light levels and decreased moisture levels, 哪些会对这个物种产生负面影响. 大型飓风可能导致死亡.

自然服务生命学
  • 05/02/2017

在佛罗里达非常罕见. Locally frequent elsewhere in range, but range is limited to Greater Antilles and 佛罗里达.

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照片
命名法
分类单元 Thelypteris sclerophylla
权威 (Poepp. C Spreng交货).V. 莫顿
家庭 Thelypteridaceae
网上信誉赌博下注数量 4447
17270
美国农业部 THSC
常见的名字 僵硬的星毛蕨。僵硬的处女蕨
相关的科学名称 Dryopteris sclerophylla | Goniopteris sclerophylla | Thelypteris sclerophylla | Aspidium sclerophyllum
分布 This species is currently and historically endemic to Miami-Dade Country in South 佛罗里达, 大安的列斯群岛(古巴牙买加), 伊斯帕尼奥拉岛, 和波多黎各), 西印度群岛, 以及中美洲和南美洲.
国家排名
状态 国家排名
佛罗里达 S1
栖息地

Thelypteris slerophylla 是南佛罗里达的岩石吊床特有的吗.  为了繁荣, it requires full shade as well as high levels of humidity; due to this, it is often found on limestone outcroppings (sometimes with a thin layer of humus) under the shade of humid hardwood forests.  It occurs at very low elevations in 佛罗里达 and middle to high elevations in Puerto Rico (350-1100m), 经常在陡峭的河岸上(Proctor 1989).

生态关系

在佛罗里达州南部, this species coexists with several mature rockland hammock tree species in the overstory (e.g. 黄柳,金银花,金银花, etc), as well as other native lithophytic ferns in the understory (e.g., 猪毛癣,铁线蕨属.).

传粉者
普通的名字 名字在文本 关联类型 Source InteractionID

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