4 ADDISONIA 
juice. Plants may be readily grown, under proper temperature 
conditions, from cuttings; these, as the juice seals the wounds 
and prevents drying out, will remain alive for a considerable period. 
The genus Trichosterigma of Klotzsch & Garcke (Abh. Akad, 
Wiss. Berlin 1859': 41; misquoted by Boissier as Tricherostigma in 
DC. Prodr. 15?: 68) is based upon Karwinsky’s Euphorbia fulgens 
as its type. It is characterized as follows: 
hrubs. Stems not articulate; leaves alternate or Boe eies 
entire, exstipulate. Inflorescence axillary, solitary o mose; 
involucres broadly campanulate, limb large, 5- tobed. aentnte. 
patent, contorted in the bud. Bracteoles of the male flowers 
linear-subulate, ciliate above, naked below; styles connate below; 
seeds ovoid-globose, runes pitted, ecarunculate, marked with a 
dark, broad ventral lin 
‘The species are all es the xerophytic regions of Southern Cali- 
fornia, Mexico, and Central America; they are, in addition to the 
above, Trichosterigma fulgens, T. californicum, T. Hindsianum, 
and T. miserum. 
C,. F. MILLspaucH. 
