Paleolimnology of the Peten Lake District,Guatemala

Long-term changes of sedimentary particle-size distribution in two tropical lowland lakes were compared with changes of human population sizes, estimated archaeologically, in the drainage basins. Mean particle size of silt and clay fractions (<64 µm) varied between 3 and 15 µm. High positive skewness and kurtosis of the distributions were associated with smaller particle sizes; hence small mean size resulted from greater influx of small particles while influx of larger particles was probably constant. An inverse correlation between mean particle size and human population size is interpreted to mean that disturbance-induced erosion results in delivery of very fine inorganic particles at higher rates. Within any one basin, particle-size stratigraphy is more precisely related to archaeological time periods than is pollen stratigraphy. An absolute chronology still eludes us, owing to the failure of ¹⁴C dating of calcareous, colluvial sediments, but our relative chronology is now more precise than before. If certain assumptions about past hydrologic relations can be met, particle-size analysis is a way of comparing the histories of geographically very different lakes, including lakes from tropical, temperate, and arctic regions.     

Medicinal plants of two Mayan Healers from San Andres,Peten, Guatemala

This study records 81 species of medicinal plants used in San Andrés, Petén. The primary source of information was an elderly Maya-speaking couple employed as traditional healers. Voucher specimens were collected, the majority from surrounding secondary forest; local names, medicinal uses, growth form, and habitat were noted. The plant families providing most species were Asteraceae and Rubiaceae. A lack of apprentices threaten continuation of this tradition in the community.     

Sacred Giants: Depiction of Bombacoideae on Maya Ceramics in Mexico,Guatemala, and Belize

Sacred Giants: Depiction of the Malvaceae Subfamily Bombacoideae on Maya Ceramics in Mexico, Guatemala, and Belize This study categorized and identified plants depicted on Maya ceramics from the Classic Period (250 a.d.–900 a.d.). We chose art objects with a predominance of iconographic images of Malvaceae subfamily Bombacoideae, which are easily identified morphologically and have culinary, medicinal, ceremonial, economic, and cosmological significance to the Maya. Among ten species of Bombacoideae native to the Southern Lowlands region of Central America (Belize, parts of Guatemala, and Mexico), the Maya utilized at least six, which also have Maya names. We observed four or five bombacoid species depicted on Maya ceramics; most images were identifiable to genus. Burial urns and incensarios (incense burners) commonly had images of trunk spines of Ceiba pentandra, the Maya “World Tree.” Flowers of Pseudobombax ellipticum, a plant used to make ceremonial beverages, were most similar to floral images portrayed on vessels, bowls, and plates, although the morphologically similar flowers of Pachira aquatica may also be depicted. Plants representing Quararibea funebris or Q. guatemalteca, which were used during preparation of cacao beverages, were discernable on drinking vessels.     

Shedding Light on the Nightshades (Solanaceae) Used by the Ancient Maya: a Review of Existing Data,and New Archeobotanical (Macro- and Microbotanical) Evidence from Archeological Sites in Guatemala

Numerous taxa within the Solanaceae family are economically important today, and for New World taxa such as chilies and tomatoes, their histories are particularly well documented. What remains less clear, however, is the extent of nightshade used by the ancient Maya. This article reviews the ethnographic, ethnohistoric, and archeological evidence of some of the major taxa in this large family, as well as providing new archeobotanical evidence in the form of macro- and microbotanical remains from Maya sites in northwestern Petén, Guatemala. This new evidence sheds additional light on the Solanaceae used by the ancient Maya in both domestic and ritual contexts. The absence of certain taxa in this family in the archeobotanical record of this region does not necessarily imply that these were not used in the past. Instead, it indicates that systematic collection of samples needs to be implemented if archeologists are to fully characterize past plant use among the ancient Maya.     

Remarks on Aspicilia parasitica (Lecanoraceae, Lichenes)

Loppi, S. & Mariotti, M. G. 1995. — Remarks on Aspicilia parasitica (Lecanoraceae, Lichenes). — Nord. J. Bot. 15: 557–559. Copenhagen. ISSN 0107–055X.
Morphology and distribution of Aspicilia parasitica B. de Lesd., a much neglected species, are discussed. Since the holotype has been lost, a lectotype was selected. Examination of the latter and other specimens showed that the diagnostic characters are quite constant. All of known stations of A. parasitica are in the central-eastem Mediterranean area and include Italy, Algeria, Greece and Bulgaria.     

Dental caries and antemortem tooth loss in the Northern Peten area,Mexico: a biocultural perspective on social status differences among the Classic Maya

Dental caries and antemortem tooth loss (AMTL) are investigated in a Classic Maya sample obtained from the sites of Calakmul, Dzibanché, and Kohunlich (Mexico). This study aims at assessing the effect that sex and social status had on the prevalence of oral pathologies. The lack of a direct relationship between caries, AMTL, and age-at-death led us to interpret the results in terms of the biological, socioeconomic, and behavioral conditions prevailing in these ancient Maya settlements. Benefits related to sex and social status are evident in the frequency of carious lesions, which appear less frequently in elite males than in low-status individuals of both sexes and in elite females. Individuals from problematic mortuary contexts and isolated bone assemblages, who could not be ascribed to any status group, showed the highest rates of caries. Sex discrimination in dietary preferences appears in the elite sample, while the homogeneity encountered between sexes in the low-status segment suggests a more uniform access to resources. Tooth loss clearly distinguishes elite individuals from commoners, regardless of sex, with the former bearing a much higher rate of loss. In individuals from the undefined mortuary assemblages and sacrificial contexts, it was even more pronounced than in the other groups, although its interpretation is problematic due to a lack of associated funerary data. The overall evidence from oral pathologies is interpreted to be the result of deficient oral hygiene coupled with a softer and more refined diet in the high-status population, particularly males. Whereas elite males' subsistence was apparently based more on animal proteins and relatively soft and refined foods, a diet relying on carbohydrates may account for the observed rate of oral pathologies in elite females and commoners.     

Plasticity,political economy,and physical growth status of Guatemala Maya children living in the United States

Migration of Maya refugees to the United States since the late 1970s affords the opportunity to study the consequences of life in a new environment on the growth of Maya children. The children of this study live in Indiantown, Florida, and Los Angeles, California. Maya children between 4 and 14 years old (n = 240) were measured for height, weight, fatness, and muscularity. Overall, compared with reference data for the United States, the Maya children are, on average, healthy and well nourished. They are taller and heavier and carry more fat and muscle mass than Maya children living in a village in Guatemala. However, they are shorter, on average, than children of black, Mexican-American, and white ethnicity living in Indiantown. Children of Maya immigrants born in the United States tend to be taller than immigrant children born in Guatemala or Mexico. Families that invest economic and social resources in their children tend to have taller children. More economically successful families have taller children. Migration theory and political economy theory from the social sciences are combined with plasticity theory and life history theory (parental investment) from biology to interpret these data. Am J Phys Anthropol 102:17–32, 1997. © 1997 Wiley-Liss, Inc.     

Remarks on three Hypobathreae (Rubiaceae) from Rodrigues, Seychelles and Sri Lanka

Ramosmania (from Rodrigues Island, Mauritius), recently described by Tirvengadum & Verdcourt as a genus of uncertain position, is here shown to belong to the tribe Hypobathreae (subtr. Hypobathrinae). It is related to Morindopsis Hook. f.
Two other rubiaceous genera previously placed in the tribe Gardenieae, viz. Para-genipa Baillon, from the Seychelles, and Nargedia Beddome, from Sri Lanka, are also shown to belong to the tribe Hypobathreae. Paragenipa cervorum Baillon being conspecific with Randia lancifolia , (Boj. ex Bak.) Hemsl. the new combination Paragenipa lancifolia is made. From the anatomical point of view, Paragenipa is interesting on account of its remarkable seed-coat (exotesta with several layers of fibres), unusual in most Rubiaceae.
Nargedia is the first representative of the subtribe Lamprothamninae outside Africa.     

A new species of Sicyos (Cucurbitaceae, Sicyeae, Sicyinae) from Mexico and Guatemala

Sicyos lirae is described as a new species from Chiapas, Mexico, and Guatemala. It grows in zones with primary or secondary montane rain forest at elevations between 1400 and 3800 meters. In Guatemala the species is commonly called “güisquil de ratón.” It is similar toSicyos galeottii Cogn., from which it differs in blade consistency, shape of the stigma lobes, and several important ovary and fruit characters.     

Farm Households and Land Use in a Core Conservation Zone of the Maya Biosphere Reserve,Guatemala

This paper employs cross-tabular analysis, and multivariate and logistic regression to explore demographic, political-economic, socioeconomic, and ecological patterns of farm households and land use outcomes in an emergent agricultural frontier: the Sierra de Lacandón National Park (SLNP)-a core conservation zone of the Maya Biosphere Reserve (MBR), Petén, Guatemala. Data were obtained from a 1998 probability sample of 241 farm households, the first large detailed household land use survey in Guatemala’s Selva Maya-the largest lowland tropical forest in Central America. Virtually all settler households were poor maize farmers who colonized the SLNP in search of land for subsistence. While they faced similar ecological and economic conditions, land use strategies and patterns of forest clearing varied with demographic, household, and farm characteristics. Findings support and refute elements from previous frontier land use theory and offer policy implications for conservation and development initiatives in the Maya Forest specifically, and in tropical agricultural frontiers in general.

Cardamine guatemalensis sp. nov. (Brassicaceae) from Guatemala

Cardamine guatemalensis Al‐Shehbaz is described from Zacapa, Guatemala. Its features such as the perennial, scapose, rhizomatous habit and simple leaves are very rare among North American Brassicaceae. The distinguishing characters from other species of Cardamine are discussed.