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The most common grass phytoliths from “Zambezian” miombos are described here for the first time. Their potential for long term preservation in sediments makes them a useful tool in the reconstruction of ancient plant communities and plant/human interactions. We processed 60 plant samples (26 identified genera and species), with an average of 300 phytoliths counted per sample to a total of 18,586. Forty-seven morphotypes were described as per the International Code for Phytolith Nomenclature, with exceptions, including forty-five discreet shapes and two articulated forms, which can be used as comparative reference materials. We conducted three forms of statistical analyses: Discriminant Analysis, Cluster Analysis, and Principal Component Analysis. The highest biomineral content was recorded among the Bambuseae and Paniceae, while the lowest silica production is detected in the Cynodonteae tribe. Typologically, the subfamily Panicoideae yielded 50% of the types reported here, 32% are from the Chloridoideae, 12% from the Bambusoideae, and 8% from the Arundinoideae sensu lato. Overall, the idealized Zambezian Poaceae phytolith spectrum is dominated by a small subset of Poaceae short cells, which include five morphotypes conventionally associated with Panicoid grasses (Bilobate concave outer margin long shaft, Bilobate concave outer margin short shaft, Bilobate convex outer margin long shaft, Bilobate convex outer margin short shaft, Cross), one morphotype commonly seen in Chloridoid taxa (saddle), and two types that appear across subfamily boundaries (tower, tower horned). The next logical step to take in regional phytolith research is the account of phytoliths deposited in soils underneath living plants, for they represent the interface between existing vegetation communities and the inevitably distorted fossil assemblages that the paleobotanist uses for environmental reconstruction.  相似文献   
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Abstract

Very few Kenyan universities offer modules on Gender or Feminism in their courses. Women are largely under-represented and very few hold senior positions. Due to the few numbers of female faculty, mentorship for young female scholars is lacking. Feminist writing by Female Kenyan geographers in professional geography journals is limited. Collective action among female geography faculty is also largely absent. This is largely due to the lack of feminist advocacy and policies in the universities. My journey to becoming a feminist geographer has received little or no support from the university. I have taken personal initiatives to link up with local and transnational gender associations in order to get insights on current feminist scholarship issues. My lived feminist experience and observations of the struggles of ordinary women in everyday livelihood negotiation have been my main motivation for continuing to do feminist work. Thus, my feminist work has concentrated on women in marginal economic informality. This paper presents my journey as a feminist geographer. It begins with a discussion on the state of feminist geography in three universities in Kenya namely, University of Nairobi, Kenyatta University and Egerton University. This is followed by a presentation of my journey toward becoming a feminist geographer in the absence of a supportive infrastructure. My journey has been inspired by my lived experience. The paper concludes with a call for a concerted effort for feminist advocacy in Kenyan Geography departments.  相似文献   
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