28 



PLANT^ WRIGHTIAN^ 



V. 



• 



ZYGOPHYLLACE^. 



75. Kallstrcemia 



(To7 



herh. HooJc.) : subei 



setis patenti 



bushispida; foliis3-5-jugis; pedunculis folio longioribns ; petalis (aureis) sepala 

 lanceolata longe acuminata duplo excedentibus ; staminibus 10 conforinibus subse 

 Qualibus ; carpellis dorso rugoso-tubcrculatis stylo pei 



dimidio brevioribus 



Borders of tbe Gila, Col. Emory 



Sonora Alta, Mexico, Coulte 



Var. detonsa: multo minus hispida vel nuda, foliis minoribus 



o. 783. 

 New Mexico 



(near El Paso ]), Sept 



Stems a span to a foot high, from an annual 



Leaf 



lets oblong, slightly falcate 

 K. maxima. 



Petals an inch long. Style much longer than 



^ 



6. Larrea Mexicana, Moricand. PL Nouv. Amer. t. 48 ; Torr. in Emory, Eep. p 



137. t. 3; Gray, Gen. El. 2. p. 120. t. 147 



Mem. N. Mex. p. 93. Zygophyllum tridentatum, BC 



L. glutinosa, Engelm. App. TT 



Eio Grande in Texas to New Me 



/ Ic. Fl. Mex. From the 

 Shrub 3 or 4 feet, in Northern Mexico from 



5 to 8 feet hig 

 specimens of a 



subjoined.* 



In Dr. Gregg's earlier North Mexican 



g 



of this order, the character 



3n I find scanty 

 which are here 



77 



78. P 



Vide p. 24 (Byttneriacese) 



ANGUSTiFOLiA : ramulis foliisque glaber 



foliolis 8-16 reti- 



culatis; stipulis espinosis ; floribus s?epius 5-meris 10-andris; filamentis breviter 



squamulosis; stylo 



biloculari; capsula obcordato 



biloba. — Guaiacum angustifolium, Etigelm. in WisUz. Mem. N. Mex. p. 113 

 Gen. III. 2.p. 12L t. 149, %• Pl. Lindh. 2. p. 158 (subgen. Guaiacidium) 



Gray, 

 Onthe 



San Pedro River, A 



In the Genera Illustrata above 



I did not refer 



plant to Porliera, with which it accords well in habit and in the squamulate fila 



(and sometimes 



in havinar tetramerous flowers), chiefly because that 



genus is figured by Adr. de Jussieu as having a strongly 



embryo, with the 



tyledons parallel to the axis of the fr 



And indeed so I find the not yet fullj 



embryo in a specimen of Porliera hygrometrica of Pavon's hcrb 



( 



* SERICODES, Nov. Gen. 



Calyx 5-partitus, pcrsistens; laciniis ovato-lanceolatis. Petala 5, rhombeo-ovata, subacuta, vix unguicu- 



[a. nempe imo calvci inserta, laciniis eiusdem a^quilonea, tarde decidua. Stamina 10, 



gy 



aequalia, cum petalis inserta : filamenta filiformia, 5 petalis opposita nuda, 5 sepalis opposita basi intus 

 squamula bifida pilosa persistente appendiculata : antherae oblongo-lineares, introrsa^, medio affixte. Dis- 

 cus nullus, Ovarium sericeo-villosissimum, arcte sessile, 5-loculare, 5-lobum, loculis sepalis oppositis: 

 stylus superne 5-angulatis, clavatis, angulis deorsum longiuscule stigmatosis. Ovula in loculis solitarla, 

 pendula. Fructus 5-coccus, siccus ; coccis sericeo-villosissimis, coriaceis, indehiscentibus, ab axi ccntrali 



gracili secedentibus. Semen exalbuminosum, loculi conforme, apice ultra hilum rostellatum. 



ibry 



rectum : cotyledones ovales, axi contrarioe : radicula conica supera. — Frutex humilis ramosissimus ; fo- 

 liis simplicibus ! parvis oblongo-spathulatis integerrimis sericeis sessilibus fasciculatis, fasciculis altemis! 

 stipulis mlnutis spinescentibus ; floribus 1 -3 ex eodem fasciculo foliorum breviter pedunculatis ; corolla 

 flava. 



S. Gheggii, — In a dry vallcy near San Lorenzo, in Northcrn Mexico, Dr, Gregg. — This is certainly 



simple leaves. 



perigynous 



A 



