Bread and surpluses: the Anglo-Saxon ‘bread wheat thesis’ reconsidered

This paper presents a fundamental new assessment of crop husbandry in the Mid Saxon period in England (c. AD 650–850), using data from charred plant remains. While recent archaeological studies have begun to emphasise the importance of agricultural development in this period – focusing especially upon field systems and livestock – crops have received comparatively little attention. This study challenges one popular model of Anglo-Saxon arable farming, here dubbed the ‘bread wheat thesis’, which posits a Mid Saxon shift whereby bread wheat supplanted hulled barley as the most important cereal crop in this period. The empirical basis for this model is here re-examined in the light of an updated archaeobotanical dataset from selected regions in southern Britain. No evidence for bread wheat supplanting hulled barley is discovered. It is argued instead that rye and oats became substantially more important in the 7th–9th centuries, regional patterns in cereal cultivation in this period correlate with differences in the natural environment and Anglo-Saxon farmers were able to produce greater arable surpluses from the 7th century onwards.     

The phytolith archaeological record: strengths and weaknesses evaluated based on a quantitative modern reference collection from Greece

The phytolith record from archaeological strata is a powerful tool for reconstructing aspects of past human behaviour and ecology. Considerable insights into the problems and potentials of this record can be obtained by studying phytoliths in modern plants. We prepared a phytolith reference collection of modern plants mostly from northern Greece that includes quantitative information on phytolith concentrations (number of phytoliths per gram dry organic material) and morphological assemblages. Here we analyse this reference collection with the aim of evaluating the strengths and weaknesses of the archaeological phytolith record. The reference collection comprises 62 different plant taxa. Of them, 28 are trees, 1 conifer, 10 shrubs and 1 herb, 3 domesticated annual legumes and 19 monocotyledons. We demonstrate quantitatively the extent to which woody species, legumes and fruits of dicots contribute only small amounts of phytoliths to the sediments per unit tissue dry weight, while leaves of trees and shrubs produce significant amounts of phytoliths and grasses are prolific phytolith producers. We compare the data of this reference collection with a similar reference collection from another Mediterranean ecosystem (Israel). The comparison indicates that some aspects of phytolith production are probably genetically controlled, whereas others are environmentally controlled. We note that despite the fact that woody species produce few phytoliths per gram of tissue, their record can be most informative when taking into account other properties of the sediments. We also note that jigsaw puzzle-shaped phytoliths normally form in plants that grow in humid conditions, but may form in arid environments when the plants are irrigated. This study clearly shows the extent to which some plants can be under-represented and others over-represented in the phytolith record. Knowing the extent of this bias can greatly improve our interpretation of the phytolith record.     

The spread of Neolithic plant economies from the Near East to northwest Europe: a phylogenetic analysis

Phylogenetic techniques are used to analyse the spread of Neolithic plant economies from the Near East to northwest Europe as a branching process from a founding ancestor. The analyses are based on a database of c. 7500 records of plant taxa from 250 sites dated to the early Neolithic of the region in which they occur, aggregated into a number of regional groups. The analysis demonstrates that a phylogenetic signal exists in the data but it is complicated by the fact that in comparison with the changes that occurred when the crop agriculture complex expanded out of the Near East, once it arrived in Europe it underwent only limited further changes. On the basis of the analysis it has been possible to identify the species losses and gains that occurred as the complex of crops and associated weeds spread and to show the influence of geographical location and cultural affinity on the pattern of losses and gains. This has led to consideration of the processes producing that history, including some reasons why the dispersal process did not produce a perfect tree phylogeny, as well as to the identification of some specific anomalies, such as the unusual nature of the Bulgarian pattern, which raise further questions for the future.     

Starch grain characterization of Prosopis chilensis (Mol.) Stuntz and P. flexuosa DC,and the analysis of their archaeological remains in Andean South America

The fruit (pods) of Prosopis (Fabaceae) are frequently recovered from pre-Hispanic Argentinian archaeological sites, suggesting that this genus was of importance in ancient economies in this region. Yet it is only recently that archaeobotanists have begun to carry out systematic research into this genus. Therefore many questions remain to be addressed concerning the food value of Prosopis fruit, and its potential contribution. This paper examines starch from the pods of two species, Prosopis flexuosa and Prosopis chilensis, for the purposes of describing and classifying their morphological features and biometrical parameters. Pods of both species were gathered from two extremes (northern and southern) of the Hualfín Valley, Catamarca, Argentina. Starch abundance is estimated and compared with that of Zea mays, an economically important plant with high concentrations of starch. This paper reveals that Prosopis pods contain very low amounts of starch compared to starch-rich edible species. Despite this, the recovery of Prosopis starch grains can be successfully used to assess archaeological tool uses. Prosopis starch grains were found to be highly variable in shape. Grain size ranged between 10 and 20 μm. Granule irregularity and the high birefringence under polarized light are two of the most important diagnostic features. No significant statistical differences were found in the structure (morphology, size and hilum) of the starch of the same species from both localities. Finally, the implications for the role of this plant in past societies are discussed.     

Hatching seeds before they’re counted

Like other analytic aspects of archaeology, archaeobotany has been growing progressively more quantitative in the past few decades. This may be a sign of the proliferation of increasingly mature and sophisticated methodologies for analyzing botanical data, but associated with the sophistication of quantitative methods is their inherent opacity: the value and applicability of anthropological conclusions drawn from quantitative archaeobotanical data are not only limited by the amount of information that can be extracted from data by sophisticated statistical tools, but also by our ability to draw reasonable anthropological—as opposed to merely statistical—conclusions. Even the words “classification” and “significance” have different meanings in statistics and in anthropology. In this paper, I propose the use of graphical analysis for archaeobotanical data in addition to, or instead of, typical statistical tools like significance tests, variable reduction, and clustering. Applied to data from charred seed assemblages from the ancient Near East, the visual representation of quantitative data has the advantage of handling semiquantitative data better and being interpretable without reliance on the paradigm of a formal statistical test.     

Preservation of fungi in archaeological charcoal

During the analysis of wood charcoal remains from archaeological sites, it is common to find different microorganisms and different forms of degradation present in the plant tissue. However, one may encounter difficulties when attempting to identify these microorganisms and determine when their attack occurred. This paper focuses on preservation aspects related to the microorganisms in wood and demonstrates the structural changes that take place in different types of decayed wood after it was converted into charcoal. The study seeks to determine whether the microbial attack found in archaeological woods took place before the burning of the wood or after. Burning experiments were conducted using wood that had been decayed by various types of fungi including white-rot, brown-rot, and soft-rot. The laboratory burnt wood samples showed decay patterns that were comparable to those observed in archaeological charcoal samples, indicating that signs of fungal infestation and features of decay can be preserved after burning with micromorphological details of mycelium and cell wall attack evident. This indication may provide important information related to the gathering of deadwood as fuelwood. In addition, examples of decayed wood preserved in archaeological charcoal assemblages are described. Their relationship to the archaeological context and environmental conditions may suggest different interpretative models concerning wood management strategies applied by past societies.     

Burning wood or burning bone? A reconsideration of flotation evidence from Upper Palaeolithic (Gravettian) sites in the Moravian Corridor

This paper compares archaeobotanical and other data from new excavations at two Upper Palaeolithic sites — Dolní V?stonice II and P?edmostí I — in the Moravian Corridor, Czech Republic. Both contain the traces of broadly contemporary ‘Gravettian’ occupations during the warmer episodes of the Pleistocene which preceded the last glacial maximum. Yet their archaeobotanical remains show striking differences — those from Dolní V?stonice II being dominated by large quantities of conifer wood charcoal, while those from P?edmostí I are much more scanty and dominated by vitrified plant remains, in association with large quantities of burnt bone. We argue that these differences between these two datasets arise from different uses of fuel at either site: bone at P?edmostí I and wood at Dolní V?stonice II. Subsequently, we explore the possible reasons for this difference and argue that once likely taphonomic distinctions are accounted for, these data on fuel use offer fresh insights into the functions and durations of these Upper Palaeolithic occupations of the Moravian corridor and some possible implications for how archaeobotanical data from such sites should be interpreted.     

An experimental study of bean and maize burning to interpret evidence from Stillhouse Hollow Cave in western North Carolina

ABSTRACT

Test excavations in a small rockshelter in the mountains of North Carolina uncovered remains of a hearth containing carbonized twigs, maize kernels, bean cotyledons, animal bone, and the fragments of a single ceramic vessel dating to approximately AD 1350. Experiments in carbonization of maize kernels and beans and involving fire-extinguishing conditions indicate that the burnt seeds recovered from the hearth were probably dry when burned, that the fire may have been smothered or doused, and that the remains may represent an offering of dry seeds, rather than food refuse, similar to that observed historically among the Cherokee.     

How was Bell Beaker economy related to Corded Ware and Early Bronze Age lifestyles? Archaeological,botanical and palynological evidence from the Hegau,Western Lake Constance region

Abstract

The Europe wide spread of what has been called the Bell Beaker phenomenon remains an enigma of European prehistory. While most of the recent research stresses the ideological aspects of using Bell Beaker material culture, here we take a regional and economical perspective. We look for the chronological relationships and the economic choices of the Bell Beaker phase and of its closest neighbours in time and space: the Late Neolithic Corded Ware and the Early Bronze Age. We focus on the regional archaeological settlement history and present the hitherto richest European Bell Beaker-associated collection of palaeobotanical macro-remains, together with our high-resolution palynological work on annually laminated lake sediments. These different lines of evidence are tied together by an absolute chronology derived from new radiocarbon accelerated mass spectrometry (AMS) dates (now more than 200) and from the dendrodates from the World Heritage wet preserved pile dwellings. We show the preceding Late Neolithic, the actual Bell Beaker, and the following Early Bronze age economies each relying on different agricultural strategies that focus on distinct parts of the landscape. There is no link obvious between Late Neolithic and Bell Beaker, but there is between Bell Beaker and Early Bronze Age. Related to different modes of production, differences in ideology become visible in food preferences as well as in other parts of the material culture. We conclude that the Bell Beaker economy represents a re-orientation of the mode of production focusing on single, rather small farmsteads which often do not leave a distinct signal in the archaeological record.     

Fruit stones from Tiao Lei's tomb of Jiangxi in China,and their palaeoethnobotanical significance

Fruit stones were discovered in Mr. Tiao Lei's Tomb (around 300 AD) at Nanchang, China. The morphology and anatomy of the fruit stones were investigated. They are identified as belonging to three species, namely, Chinese plum (Prunus salicina Lindley), red bayberry (Myrica rubra Sieb. et Zucc.), and Chinese date (Ziziphus jujuba Mill.). These stones suggest the possibility of orchards in the local area, and the fresh or processed drupes of these three species probably played important roles in the tomb owner's life.