110 
II. MkEsa-LIKE MouNTAIN SLOPES— 
Continued. 
ANNUAL HERBS. 
Summer Annuals. 
Amaranthus fimbriatus (Torr.) Wats. 
Aristida americana L. 
Boerhaavia pterocarpa Wats. (III). 
Boerhaavia watsoni Stanley (IIT). 
Boerhaavia thornberi Jones. 
Bouteloua aristidoides (Kunth.) Griseb. 
Bouteloua polystachya (Benth.) Torr. 
Cladothrix languinosa Nutt. (III). 
Cuscuta sp. 
Euphorbia glyptosperma Engelm. 
Euphorbia serpyllifolia Pers. 
Euphorbia serrula Engelm. 
Euphorbia setiloba Engelm. 
Euphorbia sp. 
Euphorbia sp. 
Kallstroemia brachystylis Vail. (III). 
Kallstroemia grandiflora Torr. (IIT). 
Mollugo cerviana (I,.) Seringe. 
Mollugo verticillata L. 
Panicum arizonicum Scribn. & Merrill. 
Panicum hirticaulum Presl. 
Panicum sp. 
Pectis papposa Gray. 
Pectis prostrata Cav. 
Trianthema portulacastrum L,. (III). 
III. Santa CruZ FLOOD-PLAIN. 
TREES. 
Acacia greggii Gray (II). 
Celtis mississippiensis Bosc., var. reticu- 
lata (Torr.) Sargent. 
_ Fraxinus velutina Torr. 
Juglans major (Torr.) Heller. 
Populus fremontii Wats. 
Prosopis odorata Torr. & Frem. 
Prosopis velutina Wooton (11). 
Salix sp. 
Salix nigra Marsh. 
Sambucus mexicana Presl. 
Sapindus drummondi H. & A. 
SHRUBS. 
Atriplex canescens (Pursh) James, 
Atriplex polycarpa (Torr.) Wats. 
Baccharis viscosa (R. & P.) 
= Baccharis glutinosa Pers. 
Cephalanthus occidentalis L. 
Condalia spathulata Gray (I). 
Keoerberlinia spinosa Zucc. 
Lycium andersonii Gray, var. wrightii 
Gray. 
*Lycium fremontii Gray, var. gracilipes 
Gray (?) 
Lycium torreyi Gray (II). 
Pluchea sericea (Nutt.) Coville. 
WOODY CLIMBERS. 
Clematis ligusticifolia Nutt. 
Psedera vitacea (Knerr) Greene. 
Vitis arizonica Engelm. 
DISTRIBUTION AND MOVEMENTS OF DESERT PLANTS. 
III. SAntTA Cruz FLoop-PLaiIn— 
Continued, 
HALF-SHRUBS. 
Acacia filiculoides (Cav.) Trelease (?) 
tSueda moquini (Torr.) Greene 
= Dondia torreyana Wats. 
{Sueeda suffrutescens Wats. 
= Dondia suffrutescens (Wats.) Heller. 
PERENNIAL HERBS. 
Asclepias galioides H. B. K. 
Aster hebecladus DC. 
Aster spinosus Benth. 
= Leucosyris spinosa (Benth.) Greene. 
Boerhaavia viscosa Lag., var. oligadena 
Heimerl. 
*Cyperus esculentus L. 
Chameesaracha coronopus (Dunal) Gray. 
*Datura meteloides DC. 
TDistichlis spicata (L.) Greene. 
Elymus triticoides Buckley. 
Gutierrezia microcephala (DC.) Gray. 
Helenium thurberi Gray. 
*Hoffmanseggia stricta Benth. (II). 
Hymenothrix wislizeni Gray. 
Maurandia antirrhiniflora (Poir.) Willd. 
Panicum obtusum H. B. K. 
Pappophorum apertum Munro (II). 
Philibertella cynanchoides (Gray) Vail. 
Philibertella hartwegii Vail, var. hetero- 
phylla (Engelm.) Vail. 
Physalis longifolia Nutt. 
Ruellia clandestina L. (II). 
*Rumex berlandieri Meisner. 
*Rumex hymenosepalus Torr. (II). 
Sida lepidota Gray, var. sagittefolia Gray. 
Solanum douglasii Dunal. 
Solanum eleagnifolium Cav. (II). 
Solidago canadensis L., var. arizonica 
Gray. 
Spheralcea cuspidata Gray (Britton) (II). 
Sporobolus wrightii Monro. 
Tencrium canadense L. var., angustatum 
Gray. 
Teucrium cubense L,. 
Trichloris fasciculata Fourn. (II). 
Verbena canescens H. B. K. 
Setaria composita H. B. K. (II) 
= Cheetochloa composita (H. B. K.) 
Scribn. 
BIENNIAL HERBS. 
Mentzelia wrightii Gray (II). 
ANNUAL HERBS. 
Long-Lived Annuals. 
Ambrosia aptera DC. 
Anoda cristata (L,) Schlecht. 
= Anoda lavaterioides Medic. 
Aster exilis Ell. 
Aster incanus (Lindl.) Gray 
=Macheranthera incana (Lindl.) 
Gray. 
