tfHE BONAVIST, LABLAB, OR HYACINTH BEAN. 7 
bonavist. The pod forms depicted show much less divergence from 
one another than in undoubted varieties of bonavist grown at Ar- 
lington Farm. 
Prain (14) thinks that Roxburgh reversed the incidence of the 
Linnsean names, partly because he cites plate 136 of Eumphius (16) 
as representing Dolichos lablab, when as a matter of fact the same 
plate is cited as D. lignosus by Linnaeus in 1763 (11, p. 1022). 
Prain further states that the two can be distinguished by the fol- 
lowing characters : 
Dolichos labial) L. Pods longer, more tapering at point ; seeds with long axis 
parallel to sutures. 
Dolichos lignosus L. Pods shorter, more abruptly truncated at end; seeds 
with long axis at right angles to sutures. 
On the basis of these pod characters, S. P. I. Nos. 8356, 25132, 21998, 
and 17534 would be Dolichos lablah and 27533 and 31363 would be 
D. lignosus (compare Plate I), but in all these varieties the long axis 
of the seeds is at right angles to the sutures. If the description of 
Prain (14) of the position of the seeds is correct in what is desig- 
nated as D. lablab, then all of the plants tested in our studies are 
D. lignosus. 
On the whole, the writers incline to the view that two species can 
not be differentiated on the basis of the characters ascribed by Rox- 
burgh (15) and by Prain (14). It seems doubtful, indeed, whether 
any of the varieties discussed by these botanists represents the 
Dolichos lignosus of Linnaeus. 
The plant cultivated as an ornamental in California under the 
name Dolichos lignosus is in reality Dolichos jacquinii DC. 
NOTES ON THE INTRODUCTION NUMBERS OF DOLICHOS LABLAB. 
The following notes refer to the various introductions of Dolichos 
lablab made by the Office of Foreign Seed and Plant Introduction 
from 1899 to 1913. 
The 95 lots here enumerated represent at least 50 varieties, judg- 
ing partly by the seeds. At Arlington Farm, Va., 57 lots represent- 
ing 39 varieties were grown from one to four seasons, and full com- 
parative field notes of these were secured. Twenty-five of these are 
early enough to mature and two to blossom. Twelve are so late that 
they had not even formed buds before they were killed by frost. 
2083. From Paris, France, 1899. See No. 20447. 
2882. From Wuchang, China, 1899. No data preserved. 
3286. From Algeria, 1899. Chinese white-flowered No. 1. Seeds apparently 
identical with No. 20447. 
3287. From Algeria, 1899. Chinese white-flowered No. 2. Seeds quite the 
same as No. 3286. 
