7540 Philadelphus 
In Munz this runs to P. serpylifolius. 
7540 *T. serpylifolius 
Leaves generally over 1 cm. . Leaves less than 1 cm. long, 
glabrous. hirsutilous above. 
Style united 2/3 or more 
Stigmas free. 
Styles very short, united. 
Stigmas more or less united. 
In Tidestrom would not run to anything. P. microphyllus 
has petals 10-15 mm. long, capsule 8 mm. long. P. occidentalis has 
petals 10-15 mm. long, capsule 6-7 mm. long. 
In Rydb. Rocky Mt. Flora would run to P. minutus if anything 
7540 P. minutus 
Glabrous, dull 
leaves 
sepals 
Densely birsute- 
beneath, shining 
3 mm. 
5 mm. 
6-8 mm. 
petals 
10-12 mm. 
In Jepson Flora of California Vol. 2, part 2, page 130 
would not run to or fit anything. Jepson however gives petals of 
P. microphyllus as 3-4 lines long. 
North American Flora adds nothing. 
The onlj" specimens that I have found to match this are from 
the Charlestons and at the Missouri Botanical Garden thre^sheets of 
2. Palmer 151, 1877. The Charleston specimens, Jones and Jaeger, 
and the Palmer specimens have been labeled P, microphyllus. 
7540, Charleston Mt., P. microphyllus 
and Palmer specimens * 
Dull 
2 mm. long 
3 mm. long 
6-8 mm. long 
united 2/3 plus 
free 
4-5 mm. 
ca 30 
long 
leaves 
hypanthium 
Sepals 
petals 
styles 
stigmas 
capsule 
stamens 
,Shining 
4- 5 mm. long 
5- 6 mm. long. 
15 mm. long * 
styles united 
usually more or less 
united. 
about 8 mm. long 
ca 40 
# Jepson gives petals 3-4 lines long. 
From available literature and specimens #7540, Jones 'and 
Jaeger plants from the Charles ons and E. Palmer # 151, seem to be 
an undescribed species 
