1895.] Flowers and Insects. 145 
the species as truly dimorphic. I have not taken great pains 
to examine flowers, but in all cases examined I have found 
indication of nothing but dimorphism. 
In my neighborhood, Lithospermum canescens is the earliest 
butterfly-flower, blooming from March 18th to June 12th. 
The stems, often several from the same base, rise from 1 to 
3" The racemes as they uncoil expose two or three erect 
orange-yellow flowers. The corolla is salver-form. The 
five-lobed border expands about 15"". The tube is about 8™™ 
long. At the throat it is narrowed to a diameter of about 1™ 
by appendages whose purpose seems to be to restrict the 
visitors to slender tongues. The orange-yellow color and 
the narrow tube indicate an adaptation to butterflies, but the 
flowers are also visited by long-tongued bees. On April 30th, 
Bey, Ist, 2nd, 17th, 20th, and June 5th the visitors observed 
wee: 
Le spelipere <Repasee (1), Pyrameis spore F .; (2) Chrysoph- 
one thoe B.-L Cakes philodice Gdt., b.; (4) Papilio ajax 
"s(s) B: aaa i (6) N soniades icelus 
ymenoptera—Apide : @, Bombus Lletioai orum F. 9g, ab.; (8) 
oye erie y steers . é %, ab.; (9) Osmia cobaltina Cr. 9, on 
sects a 1875. L.arvense, ref. (4)—( enslow, On the self- fertiza 
tion of plants 375. 1877. L. arvense, ref. (6)—(8) Bonnier, Les Nec 
aires 125, 1879. L. arvense.—(g) mith, Trimorphism in Tthosper. 
az 
II) fo) t fe) 
L. ¢ nd 4 i en Sled ref. (9) and (10).— pe SPY Miller, igure 
cee 3: 16. 1882.—(1 1p Me pie, rae ieee of Flowers 417- 
3- 
4. L.arvense 
- purpurco-cocruleum, 38, 49, L. officinale, I hristy, Laser 
ostyled p nts. Journ of ns neat frees Ht aoe san 
relative Abandahee of long and short styled fls.—(16) Halsted, Notes 
upon Lithospermum. Bot. Gaz. 14: 202-3. 1889.—(1 os kenge 
mae zur Biologie der Bluthen. Progr. z. 72 Jahresfeier d 
Wiirtemb. landwirthschaftl. Akademie Scheniecs 51. 1890.—(18 
ee SX ia 5 
