16 
Diholeos is his next genus and includes A. bisulcatus and Hay- 
cenianus, a well marked group, called Bisulcati by Gray which like all 
of Rydberg’s other segregations was first recognized by Gray or 
Watson. As I have indicated this is rather too close to the Ocreati 
for good separation. 
His next genus is Ctenophyllum and contains A. Grayi and pecti- 
natus a well marked group but too close for separation from the 
rest of the Podo-sclerocarpi, and already grouped by Gray under 
the Pectinati. 
Cystium Steven is his next genus and is supposed to include 
Gray’s Diphysi. It follows Gray in everything even to including A. 
platytropis which belongs in: the Atrati or near there. He also 
adds A. Boiseanus (arrectus var.) which belongs in the Reventi- 
arrecti. 
Geoprumnon is another segregate to include Gray’s Sarcocarpi, a 
. well marked group. 
Hamosus is another genus of Medic that he takes up. It corres- 
ponds with the Leptocarpi and not the Hamosi of Medic. It contains 
A. Nuttallianus, leptocarpus, Lindheimeri which form a good group. 
But he also puts in it A. calycusus and var, which belong in the Ha- 
mosi proper. And he puts A. atratus here also which belongs in 
the Atrati. He places here A. atratiformis (straturensis) which 
belongs in the Strigulosi, 
The next genus in order is not of Rydberg but Heller and is 
called Hesperastragalus and includes the Didymocarpi of Gray but 
neither Heller nor Rydberg sees that to it also belong Brazoensis, 
Breweri and reflexus. 
Jonesiella is another Rydbergian genus to include the remark- 
able A. asclepiadoides which belongs in the Preussii, 
Kentrophyta Nutt. is kept up and with the old limitations, but it 
belongs in the Homalobi. 
Microphacos is one of his genera to include the Microlobi of 
Gray, but is better placed in the Flexuosi, being only depauperate 
forms of this group. 
Onix of Medic is taken up for A. Mulfordae, but this belongs in the 
Hamosi. 
Homalobus is kept up and is a general hodge-podge of species. 
Without naming the species which properly belong there and which 
he puts there we find him blindly following Gray. A. collinus and 
curvicarpus (Gibbsii) are here but belong in the Collini. A. deb- 
ilis belongs in the Debiles. A. Fendleri and flexuosus belong in the 
Flexuosi; A. grallator in the Bisulcati; A. Hallii in the Flexuosi; A. 
macrocarpus (lonchocarpus) in the Lonchocarpi; A. miser in the 
Inflati; A, stenophyllus in the Collini. 
The Phaca of Linnaeus is another wholly unintelligible mixup, 
as treated by Rydberg. As I have stated Phaca of Linnaeus belongs 
to the Alpini. Rydberg puts A. ampullarius in it, but it belongs to 
the Preussii, also A. artipes which is in the same group. He puts 
A. artemisiarum (Beckwithii) here, which is also of the Preussi. A. 
Bodini (debilis) he places here, but it belongs with the Inflati, the 
same is true of A. cerussatus (triflorus), Cusickii, debilis, humilli- 
mus, jejunus, leptaleus, ineptus (lentiginosus), microcystis (miser), 
sabulonum, serpens, subcinereus, Wetherilli. He also puts A. Preus- 
sii here but it belongs in the Preussii. He puts A. Reverchoni (loti- 
florus) here but it belongs in the Lotiflori. He puts A. sesquiflorus 
here but it belongs in the humistratus branch of the Homalobi, 
He creates the genus Phacopsis to include A. Pattersoni and 
praelongus (Pattersoni var.) and adds A. scaphoides (arrectus var.) 
which belongs in the Reventi-arrecti. The first two species belong in 
He takes up Tium Medic and makes another general mixup. A. 
alpinus (andinus) belongs in the Alpini. A. arrectus, atropubescens 
. (arectus), eremiticus (arrectus var.) belong in the Reventi-arrecti. 
