Aliso Pub Date : 2017-01-01 DOI: 10.5642/ALISO.20173502.06

M. E. Siqueiros-Delgado, Rebecca S Miguel, José A. Rodríguez-Ávalos, J. Martínez-Ramírez, José Carlos Sierra-Muñoz

{"title":"Richness and Current Status of Gymnosperm Communities in Aguascalientes, Mexico","authors":"M. E. Siqueiros-Delgado, Rebecca S Miguel, José A. Rodríguez-Ávalos, J. Martínez-Ramírez, José Carlos Sierra-Muñoz","doi":"10.5642/ALISO.20173502.06","DOIUrl":"https://doi.org/10.5642/ALISO.20173502.06","url":null,"abstract":"The gymnosperm diversity of Aguascalientes, Mexico, is presented. Fifteen species from five genera and three families are reported, two of Coniferales (Cupressaceae and Pinaceae) and one of Gnetales (Ephedraceae). Pinus is the most diverse and abundant genus with seven species. The most abundant species is P. teocote, while P. strobiformis is the scarcest. Juniperus is the next most diverse genus, represented by four species, with J. deppeana the most abundant and J. durangensis the scarcest. Cupressus lusitanica, Taxodium mucronatum and Ephedra compacta are each the sole representatives of their genera. Most conifers occupy the mountainous part of the state, forming temperate forest; exceptions are Taxodium, which is located on the margins of permanent streams, and J. coahuilensis, which is found in the low parts of the Aguascalientes Valley over calcareous soils in the northern part of the state. Ephedra is distributed in the northeast part of Aguascalientes in microphyll desert scrub. The current status of the gymnosperm communities in the state of Aguascalientes is discussed.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"35 1","pages":"97-105"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70796352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plant Phenology and Water Relations in a Saline Pan-Dune Mosaic in the Western Mojave Desert 西部莫哈韦沙漠盐碱化泛沙丘马赛克中的植物物候与水分关系

Aliso Pub Date : 2017-01-01 DOI: 10.5642/ALISO.20173502.05

M. Sharifi, W. Brostoff, P. Rundel

{"title":"Plant Phenology and Water Relations in a Saline Pan-Dune Mosaic in the Western Mojave Desert","authors":"M. Sharifi, W. Brostoff, P. Rundel","doi":"10.5642/ALISO.20173502.05","DOIUrl":"https://doi.org/10.5642/ALISO.20173502.05","url":null,"abstract":"An extensive mosaic of small clay pans and low stable dunes exists within Edwards Air Force Base in the western Mojave Desert of California. This pan-dune ecosystem, positioned between the large Rosamond and Rogers dry lakes on the old Pleistocene lakebed of Lake Thompson, provides an opportunity to study the seasonal patterns in growth and flowering phenology and water relations in a saltbush scrub community dominated by a mix of C3 and C4 species. C3 shrubs initiated vegetative growth in February, with current shoot and leaf production largely ceasing in most species by mid-April. The deeply rooted Tetradymia stenolepis and Ericameria nauseosa continued vegetative growth through May. C4 species including Atriplex and the grass Distichilis spicata typically began vegetative growth in midto late March, 2–6 weeks later than the first group and continued this growth in most cases through June and July. Reproductive growth commonly did not begin until June and continued into July and/or August. Shrub species showed a general pattern of slowly declining water potentials (increased stress) through the late spring and summer months reflecting more limited soil water availability. Smaller changes in predawn water potential over this period were seen in the deeply rooted species. Soil moisture availability in the widespread Atriplex confertifolia showed a pattern of variation between pan, dune and open flat microhabtats.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"35 1","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70796751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Tomus Nominum Eriastri: The Nomenclature and Taxonomy of Eriastrum (Polemoniaceae: Loeselieae) 牡丹属植物:牡丹属植物的命名与分类(蓼科:牡丹科)

Aliso Pub Date : 2016-11-03 DOI: 10.5642/ALISO.20163402.01

S. Groot

{"title":"Tomus Nominum Eriastri: The Nomenclature and Taxonomy of Eriastrum (Polemoniaceae: Loeselieae)","authors":"S. Groot","doi":"10.5642/ALISO.20163402.01","DOIUrl":"https://doi.org/10.5642/ALISO.20163402.01","url":null,"abstract":"A revised taxonomy for the genus Eriastrum is presented, including type information, synonymy, descriptions, and keys for identification. The nomenclature of Hugelia lanata, Gilia floccosa, and Gilia virgata var. yageri is clarified. Additionally, issues pertaining to August Brand’s, Thomas Nuttall’s, and Asa Gray’s names in Eriastrum are reviewed. An illustrated glossary of important descriptive terms is provided, along with photographs and illustrations of taxa and features. Lectotypes are proposed for 14 taxa. There is further discussion about the nomenclature and type localities for each taxon, comparison of circumscriptions from previous authors, and some field observations. Discussion of identifying characteristics, geographic range, habitat, demographics, threats, conservation, and etymology is included for each taxon. A listing of unpublished herbarium names is also supplied, with the corresponding currently accepted names. One new combination, Eriastrum densifolium subsp. patens, is presented. Five new subspecies, Eriastrum diffusum subsp. coachellae, Eriastrum diffusum subsp. utahense, Eriastrum eremicum subsp. markianum, Eriastrum pluriflorum subsp. albifaux, and Eriastrum sapphirinum subsp. brevibracteatum, and one new species, Eriastrum calocyanum, are described and illustrated. As treated here, Eriastrum includes 18 species and 14 subspecies, for a total of 32 taxa.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"34 1","pages":"25-152"},"PeriodicalIF":0.0,"publicationDate":"2016-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70796638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

SEM Studies of Two Riparian New-Caledonian Conifers Reveal Air Channels in Stem Wood; Field Observations 两种新喀里多尼亚滨生针叶树茎材空气通道的扫描电镜研究野外观察

Aliso Pub Date : 2016-11-01 DOI: 10.5642/ALISO.20163401.02

S. Carlquist, Mare Nazaire

引用次数: 2

A Morphometric Analysis of Arceuthobium campylopodum and Arceuthobium divaricatum (Viscaceae) 弯曲石斛和异花石斛的形态计量学分析

Aliso Pub Date : 2016-11-01 DOI: 10.5642/ALISO.20163401.03

R. Mathiasen, S. Kenaley, C. Daugherty

{"title":"A Morphometric Analysis of Arceuthobium campylopodum and Arceuthobium divaricatum (Viscaceae)","authors":"R. Mathiasen, S. Kenaley, C. Daugherty","doi":"10.5642/ALISO.20163401.03","DOIUrl":"https://doi.org/10.5642/ALISO.20163401.03","url":null,"abstract":"Although the classification of pinyon dwarf mistletoe (Arceuthobium divaricatum, Viscaceae) has not been controversial to any extent since Engelmann described it in 1878, a recent taxonomic treatment has included this species in western dwarf mistletoe (A. campylopodum). While pinyon dwarf mistletoe is only known to parasitize pinyon pines (Pinus subsection Cembroides), western dwarf mistletoe as it has been known since the late 1800s is a principal parasite of Pinus ponderosa and P. jeffreyi and has never been observed parasitizing pinyon pines. With reservations about the recent classification of pinyon dwarf mistletoe and its treatment under A. campylopodum, we undertook this study to examine in detail the morphological characteristics of pinyon dwarf mistletoe and compare them with those of western dwarf mistletoe. Pinyon and western dwarf mistletoe populations were sampled throughout most of their geographic ranges and morphological traits including plant, flower, fruit, and seed dimensions were measured. Thereafter, we compared morphological characteristics between A. campylopodum and A. divaricatum using univariate and multivariate statistics to determine significant differences among morphologies of both male and female plants. Our analyses clearly demonstrated that pinyon and western dwarf mistletoe are morphologically distinct as originally proposed by G. Engelmann in the late 19 century. Furthermore, the host affinities of the two taxa clearly distinguish them from each other. Therefore, we recommend that A. campylopodum and A. divaricatum continue to be classified as separate species. Morphological differences between these species are summarized and a key is provided for use in their field identification.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"34 1","pages":"9-23"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70796626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nelsonioideae (Lamiales: Acanthaceae): Revision of Genera and Catalog of Species 标题蛇麻总科(片亚纲:刺科):属和种目录的修订

Aliso Pub Date : 2014-11-07 DOI: 10.5642/ALISO.20143201.02

T. Daniel, L. McDade

引用次数: 26

The Complete Plastid Genome Sequence of Iris gatesii (Section Oncocyclus), a Bearded Species from Southeastern Turkey 土耳其东南部有须种鸢尾(Iris gatesii)的全质体基因组序列

Aliso Pub Date : 2014-11-07 DOI: 10.5642/ALISO.20143201.03

Carol A. Wilson

引用次数: 10

A Newly Discovered Large and Significant Population of Castela emoryi (Emory’s Crucifixion Thorn, Simaroubaceae) in California 在加利福尼亚新发现的一个大而重要的Castela emoryi(埃默里的十字架刺，simaroubacae)种群

Aliso Pub Date : 2013-01-01 DOI: 10.5642/ALISO.20133101.07

D. S. Bell, Tasya Herskovits