PINUS POTAMOGETON 



PINUS L. (con.) 



P. JEFFREYI Grev. & Balf. 



P. ponderosa Laws. var. j. Balf. 

 P. LAMBERTIANA Dougl. 

 P. MONOPHYLLA Torr. & Frem. 



Caryopitys m. Rydb. 

 P. MONTICOLA Dougl . 



Strobus m. Rydb. 

 P. PONDEROSA" Laws. 



P. brachyptera Engelm. 

 P. scopulorum (Engelm.) Lemmon 

 P. WASHOENSIS Mason & Stockwell, 



probably a hybrid, P. ponder- 

 osa X P. jeffreyi 



Jeffrey P. 



Sugar P. 

 Singleleaf 

 Pinyon 



Western 

 White P. 



Ponderosa P. 



Subdivision ANGIOSPERMAE. Flowering Plants 

 Class MONOCOTYLEDONEAE. Monocots 



TYPHACEAE. Cattail Family 



TYPHA L. (23) 



CATTAIL 



T. DOMINGENSIS Pers. 



T. angustifolia of most western 

 authors , not L. 

 T. GLAUCA Godron, hybrid between T. 



domingensis and T. latifolia 

 T. LATIFOLIA L. 



Common C . 



SPARGANIACEAE. Burreed Family 



PSEUDOTSUGA Carr. DOUGLAS-FIR 

 P. MENZIESII (Mirb.) Franco var. 



MENZIESII D. 

 P. douglasii (Lindl.) Carr. 

 P. mucronata (Raf.) Sudw. 

 P. taxifolia (Lamb.) Britton 

 P. ME~NZIESII (Mirb.) Franco var. 



GLAUCA (Beissn.) Franco 



TSUGA (Endl.) Carr. HEMLOCK 

 T. HETEROPHYLLA (Raf.) Sarg. Western H. 



T. MERTENSIANA (Bong.) Carr. Mountain H. 



CUPRESSACEAE. Cypress Family 



JUNIPER US L. 



J. COMMUNIS L. var. SAXATILIS Pall. 



J. c. var. montana Ait. 



J. sibirica Burgsd. 

 J. MONOSPERMA (Engelm.) Sarg. 



Sabina m. Rydb. 

 J. OCCIDENTALS Hook. 



Sabina o. Ant. 

 J. OSTEOSPERMA (Torr.) Little 



J. utahensis (Engelm.) Lemmon 



Sabina u. Rydb. 

 J. SCOPULORUM Sarg. 



Sabina s. Rydb. 



JUNIPER 



Mt. Common J. 



One-seed J. 

 Western J. 

 Utah J. 



Rocky Mtn. J. 



EPHEDRACEAE. Ephedra Family 



EPHEDRA L. (21, 22) 



E. 



ASPERA Engelm. 



E. nevadensis S. Wats. var. a. 

 L. Benson 



E. reedii Cory 

 CUTLERI Peebles 



E. coryi Reed var. viscida Cutler 



E. viridis Cov. var. v. L. Benson 

 FASCICULATA A. NelsTvar. 



FASCICULATA 

 FASCICULATA A. Nels var. CLOKEYI 

 (Cutler) Clokey 



E_. c. Cutler 

 NEVADENSIS S. Wats. 



E_. antisyphilitica S . Wats. 



E. n. var. pedunculata S. Wats. 

 TORREYANA S. Wats. 

 VIRIDIS Cov. 



E^. nevadensis var. v. M. E. Jones 



EPHEDRA; 

 JOINT-FIR; 

 MORMON- 

 TEA 



Rough E. 



Nevada E. 



Torrey E. 

 Green E. 



BURREED 

 Narrowleaf B. 

 Giant B. 

 Least B. 



SPARGANIUM L. (3) 



S. ANGUSTIFOLIUM Michx. 

 S. EURYCARPUM Engelm. 

 S. MINIMUM Fries 

 S. MULTIPEDUNCULATUM (Morong) 

 Rydb. 



S. simplex of American authors, 

 not Huds. 



POTAMOGETONACEAE. Pondweed Family 



POTAMOGETON L. (24,25,26) PONDWEED 

 P. ALPINUS Balbis var. SUBELLIPTICUS 



(Fern.) Ogden 

 P. ALPINUS Balbis var. TENUIFOLIUS 



(Raf . ) Ogden Slim leaf P. 



P. a. of American authors, not 

 Balbis 



P. t_. Raf. 



P. AMPLIFOLIUS Tuckerm. Largeleaf P. 



P. BERCHTOLDII Fieb. 



P. pusillus of Femald in 24, not L. 

 P. CRfSPUS L. Curly P. 



P. DIVERSIFOLIUS Raf. 



P. dimorphus of California authors, 

 not Raf. 



P. EPIHYDRUS Raf. Ribbonleaf P. 



P. e. var. nuttallii (Cham. & Schl.) 

 Fern. 



P. FIBRILLOSUS Fern. 

 P. FILIFORMIS Pers. var. FILIFORMIS 

 P. interior Rydb. , in a large part 

 P. FILIFORMIS Pers. var. BORE A LIS 

 (Raf.) St. John 

 P. interior Rydb. , in a small part 

 P. FILIFORMIS Pers. var. MACOUNII 

 Morong 



P. FOLIOSUS Raf. var. FOLIOSUS 

 P. FOLIOSUS Raf. var. MACELLUS Fern. 

 P. FRIESII Rupr. 



P. GRAMINEUS L. var. GRAMINEUS 

 P. g. var. graminifolius Fries 

 P. heterophyllus of Intermountain 

 authors, not Schreb. 

 P. GRAMINEUS L. var. MAXIMUS Morong 

 P. ILLINOENSIS Morong 



P. lucens of American authors, 

 not L. 



P. zizzi of American authors, 

 not M. & K. 

 P. LATIFOLIUS (J. W. Robbins) Morong 

 P. pectinatus L. var. 1. J. W. 

 Robbins 



P. NATANS L. 

 P. NODOSUS Poir. 



P. americanus Cham. & Schreb. 



P. lonchites auth. 



Leafy P. 



Fries P. 

 Variableleaf P. 



Illinois P. 



Broadleaf P. 



Floatingleaf P. 

 Longleaf P. 



3 



