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A Revision Of Cryptantha Subgenus Oreocarya, Larry C. Higgins

Brigham Young University Science Bulletin, Biological Series

This study is a taxonomic revision of Cryptantha subgenus Oreocarya (Boraginaceae), together with descriptions of species, synonyms, distribution maps, and discussions. The present treatment recognizes fifty-seven species and fourteen varieties, all separated by means of a comprehensive key, A history of the group, along with a discussion of distribution, ecology, and phylogeny is presented. As a basis for the comparison of taxa much of the research has been concentrated on morphological variation in herbarium specimens. Particular attention has been directed to a study of pubescence types, branching patterns, flowers, calyces, and fruit. The herbarium research has been correlated with extensive …

Front Matter, Vol. 13 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 13 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Experimental Evidence For Hybrid Origin Of Dichelostemma, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Two New Species Of Dandya (Liliaceae) From Mexico And A Reexamination Of Bessera And Behria, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Chromosome Numbers In The Genus Milla Cav. (Liliaceae), Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

A New Species Of Penstemon From Nye County, Nevada, Noel H. Holmgren

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Comparative Serology Of The Order Nymphaeales. Ii. Relationships Of Nymphaeaceae And Nelumbonaceae, Jean-Pierre Simon

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

A New Species Of Lethyrus (Fabaceae) From The Death Valley Region Of California And Nevada, Rupert C. Barneby, James L. Reveal

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Wood Anatomy Of Macaronesian And Other Brassicaceae, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Director's Report, Lee W. Lenz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium : Thick-Leaf Poison (Gastrolobium Crassifolium Benth.), Narrow-Leaf Poison (Gastrolobium Stenophyllum Turcz.), Mallet Poison (Gastrolobium Densifolium C.A. Gardn.), Wall-Flower Poison (Gastrolobium Grandifolorum F. Muell), T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with three species of Gastrolobium which are found in the south-west region of Western Australia. Two of these extend into the Eyre District, the third species is found in the Lake Grace area. The fourth species, Wall-flower poison, is the only toxic species of the genus found outside the State.

A New Annual Eriogonum (Polygonaceae) From Southern Nevada And Adjacent California, James L. Reveal

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Internode Growth In The Aquatic Macrophyte, Hippuris Vulgaris, Mary Ellen Bland

Journal of the Minnesota Academy of Science

ABSTRACT -An analysis of internode lengths in the Hippuris stem is represented by a four phase growth curve, The two parameters which infl~ence this pattern of internode lengths are the number of cells per internode and the length of the individual cells within the internode. In the ontogeny of the Hippuris stem cell length and cell number influence internode length in the distal portion of the stem while in the basal portion of the stem cell number is the major factor affecting internode length. The pattern of stem growth in Hippuris differs from that of Elodea in that the cell …

Relation Of Hybridity To The Expression Of Gene Dwarf-1 In Maize Coleoptile Growth, Martin C. Goffinet

Journal of the Minnesota Academy of Science

ABSTRACT - The plants used in this study were two inbred strains of maize and their hybrid. Each strain segregated for the mendelian gene dwarf-1, approximating a ratio of three normal to one dwarf, with l 00 per cent penetrance. The length of each of fifty coleoptiles per strain was determined at planting and after emergence of the seedlings until maturity of that organ. The dwarf seedlings were compared with their normal sibs within each strain to determine the degree of expression of the mutant gene. The growth parameters determined from the measurements were: l) total elongation of coleoptile after …

Vegetation And Soils Of The Balsam Fir Habitat Type Of Southern St. Louis County, Andrew F. Robinson Jr.

Journal of the Minnesota Academy of Science

ABSTRACT - The vegetation and soils of the Abies balsamea/Lonicera canadensis/Cornus canadensis habitat type were characterized from field reconnaissance, soils and plant tissue analysis of six balsam fir stands of Northeastern Minnesota. From nutrient analysis, the concentration of phosphorous and potassium was found to be much higher in living balsam fir needles than in surrounding soils.

The Vessel Member Of Myrica Esculenta Buch.-Ham., Lucy B. Abbe, Ernst C. Abbe

Journal of the Minnesota Academy of Science

ABSTRACT- The vessel members of Myrica escu/enta from two_ trees, one in Sarawak, the other in Singapore, are described. The differences in habitat as well as in vertical position in each-tree have a minor influence on dimensional characteristics of the vessel members. However, radial position is very significant. Average length of element increases from 600μ, to 950μ, b~tween .05 cm from the pith to 1.75 cm from the pith and then ceases to elongate appreciably. Average diameter over the same radial distance increases from 30μ, to l 05μ. Also over the same radial distance, the average number of perforations of …

Aphanizomenon Elenkinii Kissel, An Interesting Variation, Hibbert Hill

Journal of the Minnesota Academy of Science

ABSTRACT-A mature bloom of Aphanizomenon elenkinii Kissel, type II, appeared in a local lake in late April, early May, 1971. The appearance of the alga in late spring and changes in the structures of the alga from those previously reported are of interest.

Evolution Of The Iguanine Lizards (Sauria, Iguanidae) As Determined By Osteological And Myological Characters, David F. Avery, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The problem of phylogenic relationships within the iguanine phyletic line and the Madagascar iguanids have been investigated in order to explain the discontinuous distribution exhibited by the members of the family Iguanidae. Owing to inconclusive results from cytology and histological methods, the comparative morphology of the anterior osteology, myology, tongues, and hemipenes were used to determine relationships.

An examination of the above structures of the members of the iguanine phyletic lines and a comparison with the Madagascar iguanids indicates the following: ( 1 ) The Madagascar genera Chalarodon and Oplurus appear to be more closely related to each other than …

Land Use In Wah Wah And Pine Valleys, Western Utah, Joseph R. Murdock, Stanley L. Welsh

Brigham Young University Science Bulletin, Biological Series

This is a review of the use of public lands in Wah Wah and Pine Valleys in western Utah for grazing of livestock, mining, and other private enterprises. The total area of the two valleys is approximately 1,440 square miles of which about 30 square miles are privately owned. From the time grazing of domestic livestock was initiated in the 1870's and 1880's until 1934, the land was free public domain and was grazed on a first-come, first-served basis. Passage of the Taylor Grazing Act in 1934 ended free use of public lands. Existing evidence indicates that by 1934 the …

Front Matter, Vol. 12 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 12 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 12 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 12 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium : Wodjil Poison (Gastrolobium Floribundum S. Moore) Breelya Or Kite-Leaf Poison (Gastrolobium Laytonii J. White) Roe's Poison (Oxylobium Spectabile Endl.) Granite Poison (Oxylobium Graniticum S. Moore), T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with four species which are found in the pastoral area although three of them are also present in the agricultural area.

Studies Of Arundinaria: Experimental Induction Of Flowering And Additional Observation In The Field, Daniel L. Marsh

Journal of the Arkansas Academy of Science

Arundinaria has been observed for three successive seasons at a site near Amity, Arkansas. In advance of the 1971 flowering period rhizomes were taken from the field, pruned, and placed either in an environmental chamber or in the greenhouse in water or in sandy soil. Flowering occurred under each condition, but was most rapid and profuse in transplants growing in sandy soil in the greenhouse. Observations point to the possibility of induction of flowering or to the possible existence of an annually flowering race. Possible economic uses are considered.

Survey Of The Vascular Flora Of Poinsett County, Arkansas, Michael I. Johnson

Journal of the Arkansas Academy of Science

A survey of the vascular flora of Poinsett County, Arkansas was made over a period of 13 months. The fifteen field trips taken were planned to include representative soil associations and geographic areas within the county. Three hundred sixty-three species and varieties from eighty-three families were collected or examined.