This study examined variation in two components of acorn production. Percentage of bearing ramets (stems) and number of acorns per bearing ramet were examined in five clonal oaks in three xeric habitats of south-central peninsular Florida in relation to ramet size within and between species and vegetative associations. Counts of acorns on two white oaks (Quercus chapmanii and Q. geminata) and t...

Early regeneration success of upland oaks (Quercus spp. L.) was compared for three regeneration cutting treatments in the Sandstone Mountain Region of northern Alabama. Two 4-acre replications each of block dearcutting. strip cutting, and deferment cutting were established on north-facing slopes. The three harvesting treatments were applied in midsummer. Regeneration subplots were reinventoried...

We examined post-fire recovery of two components of acorn production (percentage of bearing ramets [stems] and number of acorns per bearing ramet) for four species of oaks in southern ridge sandhill vegetation in south-central peninsular Florida. Annual counts of acorns on two white oaks (Quercus chapmanii and Q. geminata) and two red oaks (Q. laevis and Q. myrtifolia) were conducted annually (...

The two earliest Arabic treatises explaining the construction of magic squares date from 10th century ad. One is found in Commentary on Arithmetical [Introduction] (Kitāb tafsīr al-Arithmāṭīqī) by ʿAlī ibn Aḥmad al-Anṭākī (d. 376 H/ad 987). Only book 3 original three books extant, and that a single manuscript. This divided into chapters: first collection arithmetical definitions, statements pro...

J. Econ. Entomo!. 79: 1276-1279 (1986) ABSTRACT In 1984-85 free-flying nitidulids were trapped in centers of oak wilt, Ceratocystis fagacearum (Bretz) Hunt, for 1 year at six locations in central Texas. Two of the 10 species identified, Cryptarcha concinna Melsheimer and Coiopterus maculatus (Erichson), accounted for 57 and 35%, respectively, of the total number (3,397) of beetles trapped. Peak...

A report on recent results and outstanding problems concerning additive chow groups. “Mighty oaks from little acorns grow.”