USNM 37580 Credneria mixta Hollick  

Notes

Hollick (1930)

Pl. 57, Fig. 1

Pl. 56, Fig. 4

 

Locality

From Hollick (1930) (p.88)

"Yukon River, north bank, about 12 miles below Melozi telegraph station (original No. 3AH11); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3248) (Pl. 56, Fig. 4). Yukon River, north bank, about 3 miles above Kaltag (original No. 3AH27); collected by Arthur Hollick and Sidney Paige in 1903 (lot 3266) (Pl. 57, Fig. 1)."

 

Locality Map

 

Description

From Hollick (1930) (p.88)

"Leaves about 9 centimeters in length by 7 centimeters in maximum width, ovate, asymmetric, the apex turned to one side, oblique, the base truncate, oblique;
margin denticulate above, entire below; midrib flexuous; secondary nerves pinnately arranged, craspedodrome, four or five on each side, sharply ascending, alternate or subopposite, branched on the under sides toward the extremities, the lowest two suprabasilar, simulating lateral primaries, with branches on the under sides that diverge from the lateral primaries at obtuse angles and are either camptodrome or craspedodrome
according to the entire or denticulate characterof the adjacent margin; basilar veinlets horizontal."

 

Remarks

From Hollick (1930) (p.88)

"The leaves appear to have the marginal characters of Credneria grewiopsoides, the species last described, and the nervation of C. inordinata. (See p. 86, pl. 56, fig. 3, and pl. 57, figs. 2, 3.) They differ slightly between themselves, and either specimen might be regarded merely as a form of some one or another of the species described in these pages. Their ovate rather than obovate outline is their principal distinguishing feature."