OAK FAMILY 



353 



facing the sea. Wood hard but brittle and used only for fuel. Called also 

 Burr Oak, Weeping Oak, Roble, White Oak, Mush Oak, Swamp Oak, Bottom 

 Oak and Water Oak. 



Forma argillora Jepson n. form. Tree mostly or quite destitute of pendulous 

 branchlets ; bark smoother, often whitish and simulating Blue Oak bark ; leaves 

 usually very deeply and narrowly lobed, often persistent through the winter. 

 (Arbor ramulis pendulis nullis vel paucis; cortex levior, albineus; folia pinna- 

 tifida, profundis lobis angustis, per hienien seepe persistantia). Clay hills, as 

 on the Araquipa Hills, Solano Co. 



a 



FIG. 64. QUERCUS LOBATA Nee VAR. WALTERII Jepson. a, Leaf; &, acorn, nat. size. 



Forma insperata Jepson n. form. Leaves narrow, % to l 1 ^ inches broad, l 1 /^ 

 to 214 inches long; cups strongly tuberculate, not so deep as in type; nuts 

 rather smaller, 1^4 to 1% inches long. (Folia angusta, profunde pinnatifida, 

 % to 114 poll- lata, 1% to 214 poll, longa; cupulse tuberculatae, minoris alti- 

 tudinis quam in typo; glandes paulo minores, l 1 /^ ad 1% poll, longas). Kaweah 

 River basin, 3,500 feet, Walter Fry, Nov. 1908. 



Forma rarita Jepson, n. form. Dwarfish or shrub-like ; leaves smaller, deeply 

 lobed (iy 2 to 2 inches long, % to iy 2 inches broad). Pygmaea vel fruticosa; 

 folia minora, profunde lobata, l 1 /^ ad 2 poll, longa, % ad iy 2 poll. lata). Near 

 chaparral areas as on Twin Sisters Peak (W.L.J. no. 2384). 



Var. walterii Jepson n. var. (Fig. 64.) Leaves 3 to 4 inches long, nearly 

 as broad, sharply but mostly shallowly sinuate; cup large (1 inch broad) but 



