Explanations of Plates 36 to 58, Genus Atriplex. 



Plate 36. 



Atriplex hvrtensis. (Drawn from fresh material from 

 Logan, Utah, except figures 4 and 5, these 

 from a specimen from Austria, 7174 UC.) 



(1) Leaf and part of pistillate inflorescence, X 1. 



(2) Fruiting bracts, X 2. 



(3) Vertical section of the seed, showing the inferior 



position of the radicle, X 16. 



(4) Summit of stem with staminate inflorescence, 



X 1. 



(5) Staminate flower, X 16. 

 Plate 37. 



Atriplex palula hastata. 



(1) Inflorescence and upper leaves, X 1. (Drawn 



from fresh material from Logan, I'tah.) 



(2) Portion of stem with an average leaf, X 1. 



(I""rom the same plant as 1.) 



(3) Staminate flower, X 16. (From San Fran- 



cisco Bay, California.) 



(4) Fruiting bracts, X 2. (I'Vom San Francisco 



Bay, California.) 



(5) Vertical section of the seed showing the inferior 



position of the radicle, X 16. (From the 

 same material as 1.) 



(6) Inflorescence and upper leaves of a minor 



variation (carnosa), X 1. (Drawn from fresh 

 material from Solano County, California.) 



(7) Portion of stem with leaves, X 1. (From the 



same plant as 6.) 

 Atriplex patuia typica. (Material from San Francisco 

 Bay, California.) 



(8) Part of inflorescence, with typical leaves, XI. 



(9) A i)air of fruiting bracts as seen from above, 



the seed visible in the opening; X 2. 

 (10) Fruiting bracts, showing gradation in size, 

 dentations, and sculpturing; X 2. 

 Plate 38. 



Atriplex Tosea. (Drawn from fresh material and photo- 

 graphs from Logan, Utah, and from Byron, 

 California.) 



(1) Upper portion of plant showing leaves and 



inflorescence, X 1. 



(2) Portion of stem with lower leaf, X 1. 



(3) Sketches to show variation in habit; all grada- 



tions from simple-stemmed to bushy plants 

 are common; small sketches, X 0.1, bushy 

 plant X 0.02. 



(4) Staminate flower, X 16. 



(5) Fruiting bracts showing variation on a single 



plant, X 2. 



(6) Vertical section of seed showing the ascending 



position of the radicle, X 16. 

 Atriplex viariiima. (Material from New Brunswick, 

 Blake 569$, Or.) 



(7) Upper portion of stem with leaves, X 1. 



(8) A series of three fniiting bracts, X 2. 

 Atriplex iaUirica. (Material from Pensacola, Florida, 



110231 UC, the bracts from Camden, New 

 Jersey, US.) 



(9) Branch showing the characteristic pinnatifid 



leaves and the inflorescence, X 1. 



(10) Fruiting bract, X 2. 



(11) Fruiting bract with cristate appendages, X 2. 

 Plate 39. 



Atriplex scmibaccaia. (Drawn from fresh material 

 of plants growing in Cahfornia.) 

 (1) Branches showing leaves and fruiting bracts 

 and the short staminate clusters; stems 

 trailing; X 1. 



Plate 39 — continued. 



(2) Staminate flower, X 16. 



(3) Fruiting bract, fleshy and reddish; X 2. 



(4) Vertical section of the seed showing the inferior 



but lateral position of the radicle, X 16. 

 Atriplex lialimoides. (Material from introduced plants 

 collected in San Diego County, California. 

 110273 UC.) 



(5) Twig with leaves and small staminate clustera, 



X 1. 



(6) Two leaves from farther down the stem, X 1. 



(7) Fruiting bract, thick and spongious, X 2. 



(8) Vertical section of seed showing the inferior 



imsition of the radicle, X 16. 

 Atriplex californica. (Drawn from fresh material from 

 Ventura County, California.) 



(9) Spray showing the numerous fruiting bracts 



in the axils of the crowded leaves, prostrate 

 from a fusiform taproot, X 1. 



(10) Staminate flower, X 16. 



(11) Fruiting bracts, united only at very base; X 2. 



(12) Vertical section of seed showing the inferior 



position of the radicle, X 16. 

 Plate 40. 



Atriplex phyUoslegia. (Drawn from fresh material 

 from north of Ilcno, Nevada.) 



(1) Upper portion of plant showing characteristic 



leaves, fruiting bracts, and staminate clusters; 

 X 1. The plants are strictly erect. 



(2) Staminate flower, X 16. 



(3) Fruiting bracts, X 2. 



(4) Vertical section of seed showing the superior 



position of the radicle, X 16. 



(5) Fruiting bracts with imusual appendages, X 2. 



(From the type of A. draconis, minor varia- 

 tion 2.) 

 Atriplex dioeca. (Material from Johnson County, 

 Wyoming, 51442 UC). 



(6) Branch showing the verj' smooth leaves and 



the staminate inflorescence, the minut« 

 fruiting bracts hidden in the axils of the 

 leaves; X 1. 



(7) Staminate flower, X 16. 



(8) Fniiting bract*, X 2. 



(9) Vertical section of the seed showing the 



sui)erior position of the radicle, X 16. 

 Atriplex immilijera. (Dra\m from type material, Gr.) 



(10) Leafy branch, probably prostrate; X 1. 



(11) Staminate inflorescence, X 1. 



(12) Staminate flower, X 16. 



('J'he pistillate flowers of this 8i)ecies are 

 imknown.) 

 Plate 41. 

 Atriplex ttdarerms. (Drawn from fresh material from 

 the ty)ie locality.) 



(1) Upper portion of a large plant showing the 



leaves and the virgate inflorescence, X 1. 



(2) An entire .smaller plant, X 1. 



(3) Vertical section of the seed showing the 



superior position of the radicle, X 16. 



(4) A scries of four fniiting bracts, all from the 



same plant a.s illustrated in fig. 1; X 2. 



(5) A series of three fruiting bracts taken from 



plants growing near the ones shown in figs. 1 

 and 2, X 2. 



(6) Staminate flower, X 16. 



Atriplex tenuissima. (Drawn from specimens of the 

 type collection, 206831 UC, except fig. 11.) 



(7) Branch with leaves from tj-pe collection, X 1. 



(8) A series of four bracts from a single plant, X 2. 



