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To evaluate the relationship between the four subspecies of Fragaria chiloensis, 14 characters were measured in 95 plants. F ratios from ANOVA were used to determine and apply the optimal characters for subspecies separation. Discriminant analysis indicated that the Hawaiian ssp. sandwicensis was entirely distinct, differing from the other subspecies in having longer leaflets and longer hairs on the undersurface of the leaflets and more numerous leaflet veins. The South American and North American plants were significantly different but overlapped to a degree. The former differed primarily by having mostly 6-10 petals, instead of having 5-6 (rarely 7) petals. The two North American subspecies overlapped extensively and may be best transferred to a lower taxonomic rank. A key to the subspecies is included.Key words: Fragaria chiloensis, ssp. pacifica, ssp. lucida, ssp.sandwicensis, ssp. chiloensis, Rosaceae, strawberry, taxonomy, classification, morphology, North America, South America, Hawaii.

Catling, P. M. and Porebski, S. 1998. Rare wild plants of potential or current economic importance in Canada -a list of priorities. Can. J. Plant Sci. 78: 653-658. A priorization system based on dollar value of plant, degree of relationship to economic genotype, and rarity status was applied to rare plants in Canada. This resulted in priorization of 56 taxa, approximately 1% of wild plants of Canada. Most of these taxa are native species, but a few are infraspecific taxa, and some are introduced. Most of the priorized taxa are plants of the Carolinian region of extreme southern Ontario, which is part of the Mixedwood Plains Ecozone. The provinces with the highest numbers were Ontario with 38, British Columbia with 9, Quebec with 8 and Manitoba with 7. Crops, crop relatives and forages accounted for 38 of the taxa. Twelve were plants providing ingredients for commercial drug products or health foods. Nine were sources of wood. Five were plants used in landscape gardening, land reclamation or erosion control. Native berry producing plants, i.e. relatives of clonal crops for which Canada contains significant germplasm on a world scale, were the largest economic group with 18 taxa. Twenty-six of the priorized plants were herbs, 17 were shrubs and 13 were trees. The genera Amelanchier and Linum were the largest taxonomic groups, each with four taxa. The list and related geographic data can be used to orient monitoring and management, to select and acquire material for ex situ protection, and to select and priorize sites for in situ protection.Key words: Germplasm, protection, rare plants, crops, pharmaceuticals, ornamentals, medicinal plants Catling, P. M. et Porebski, S. 1998. Plantes sauvages rares d'importance économique actuelle ou éventuelle au Canada. Liste de mise en ordre de priorité. Can. J. Plant Sci. 78: 653-658. Nous avons appliqué à un certain nombre d'espèces végétales rares au Canada un système de mise en ordre de priorité fondé sur la valeur en argent de la plante, sur le degré de rapport avec le géno-type et sur le niveau de rareté. Nous avons ainsi pu mettre en priorité 56 taxons, soit environ 1 % de toutes les plantes sauvages présentes au pays. La majorité de ces taxons sont indigènes, mais dans un certain cas il s'agit de taxons infraspécifiques et il y a aussi quelques espèces introduites. Pour la plupart, les taxons appartiennent à la région Carolinienne de l'extrême sud de l'Ontario, laquelle est partie de l'Écozone des plaines à forêt mixtes. Les provinces comptant le plus de ces taxons sont l'Ontario avec 38, la Colombie-Britannique avec 9, le Québec avec 8 et le Manitoba avec 7. Trente-huit taxons consistaient en espèces cultivées ou apparentées et des espèces fourragères. Douze taxons étaient des sources d'ingrédients pour les produits pharmaceutiques ou pour les aliments naturels, neuf étaient des essences ligneuses et cinq des plantes utilisées pour l'aménagement paysager, la remise en état de la terre ou la lutte antiérosive. Les plantes indigènes à petits fruits, c.-à-d. des espèces ap...

To improve the intraspecific classification of Fragaria chiloensis (L.) Duchesne, 35 plants including 5 North American ssp. lucida, 15 North American ssp. pacifica, and 15 South American ssp. chiloensis were analysed using random amplified polymorphic DNA (RAPDs). From 100 primers screened, 12 were selected providing 62 scorable polymorphic bands. The phenogram (cophenetic correlation, r = 0.99) based on UPGMA clustering of Jaccard's coefficients revealed a clear division between North American and South American plants, but only partial separation was shown between the two North American subspecies. This is the first comprehensive molecular evidence for major genetic divergence between the North American and South American subspecies of F. chiloensis and suggests greater genetic variation within the Canadian material of the North American ssp. pacifica than within the South American ssp.chiloensis. These findings strongly support protection and utilization of wild Canadian Fragaria germplasm for crop improvement.Key words: strawberry, Fragaria chiloensis, ssp. chiloensis, ssp. pacifica, ssp. lucida, RAPD, variation, germplasm, Canada, United States, Chile.

analysis of morphological variation in British Columbia coastal strawberries (Fragaria) for germplasm protection. J. Plant Sci. 78: 117-124. In order to enhance the utilization and protection of wild Fragaria germplasm from coastal British Columbia, patterns of morphological variation were assessed in plants from the Pacific coastal region of Canada. Twenty-five characters were evaluated in 87 plants grown in the uniform garden at the Canadian clonal genebank. Seven characters including the number of veins, length of the terminal tooth, roundness of tooth, tooth distribution, leaf thickness, leaf color and leaf surface were significant at the 5% level in distinguishing ecoregional groupings, and a discriminant analysis was also significant. The major pattern of variation involved plants from southern Vancouver Island to the upper Strait of Georgia, ecoregions 192 and 194, which have thinner, paler, more glaucous leaves with less broadly rounded teeth, suggesting hybridization of F. chiloensis with F. virginiana. A clustering of ecoregional group centroids using the unweighted pair group method with arithmetic averages indicated that, in order to optimally protect genetic variation, 28.35% of the protected accessions should be selected from each of ecoregions 192 and 194, with ecoregion 191 accounting for 15.98%, and the remaining ecoregions contributing 13.66% of accessions. 78: 117-124. Dans le but de stimuler l'utilisation et la conservation du patrimoine génétique des fraisiers sauvages (Fragaria) du littoral de la Colombie-Britannique, nous avons évalué le tableau de la variabilité morphologique des plantes de cette région. Vingt-cinq caractères étaient pris en compte chez 87 plantes cultivées dans une pépinière uniforme de la banque de clônes canadienne. Sept de ces caractères avaient une valeur significative au seuil de probabilité de 5 % comme indice de distinction des groupements écorégionaux, ce sont: le nombre des nervures foliaires, la longueur de la dent apicale, le degré d'arrondissement et la répartition des dents, l'épaisseur, la couleur et la surface de la feuille. L'analyse discriminante faisait ressortir encore davantage (P = 0,01) la discrimination des plantes selon les écorégions. La majeure partie de la variabilité s'observait sur des plantes provenant du sud de l'île Vancouver au nord du détroit de Georgie, soit les écorégions 192 et 194 qui ont des feuilles plus minces, plus pâles et plus glauques, aux dents moins largement arrondies, laissant soupçonner un phénomène d'hybridation entre Fragaria chiloensis et F. virginiana. La classification hiérarchique des centroïdes des groupements écorégionaux selon la méthode des groupes de paires non pondérées utilisant les moyennes arithmétiques a permis de constater que pour assurer une protection idéale de la variation génétique, 28,35 % des obtentions protégées devraient provenir de chacune des écorégions 192 et 194, la proportion étant de 15,98 % pour l'écorégion 191 et de 13,66 % pour le reste des écorégions.