indicates roughly the part of a State. Dots have been added also for 
the District of Columbia, Provinces of Canada, and States of Mexico. 
Text ranges for each species have been added from the 1979 Checklist. 
TEXT RANGES 
Text ranges, summaries or outlines in words for reference or quo- 
tation, are available in the 1979 Checklist for each tree species mapped 
in the Atlas. Also, Volumes 2, 4, and 5 contain this information for 
their species. Text ranges for the 36 species mapped here in Volume 
6 are listed below for convenient reference. A few have been revised 
slightly from the 1979 Checklist. 
1. Crataegus aestivalis (Walt.) Torr. & Gray, May hawthorn. Coastal 
Plain from s. N.C. sw. to n. and nw. Fla., s. Ala., and s. Miss. 
2. Crataegus berberifolia Torr. & Gray, barberry hawthorn. Miss. 
Valley region from s. Ill. w. to sw. Kans., s. to n. c. and e. Tex., e. to 
Miss., and n. to w. Ky. 
3. Crataegus brachyacantha Sarg. & Engelm., blueberry haw- 
thorn. Coastal Plain in sw. Ga., Ala., La., sw. Ark., extreme se. Okla., 
and e. Tex. 
4. Crataegus brainerdii Sarg., Brainerd hawthorn. N.S., Maine, 
and s. Que., w. to s. Ont. and Mich., s. to Ohio, and e. to Pa., N.Y., 
and Conn. Recorded from mts. of w. N.C. 
5. Crataegus chrysocarpa Ashe, fireberry hawthorn, Nfld., N.S., 
Que., and Maine, w. to Ont., Sask., and Alta., s. in mts. to Mont., ne. 
Wyo., and n. Colo., also from S. Dak. and Minn. s. to Mo., e. to W. 
Va. and Va., and n. to Pa., N.Y., and Mass. 
6. Crataegus calpodendron (Ehrh.) Medic., pear hawthorn. N.Y. 
and s. Ont., w. to Wis. and Minn., s. to Iowa, se. Nebr., and e. Tex., e. 
to Ga., and n. to w. N.C., Va., and N.J. 
7. Crataegus coccinea L., scarlet hawthorn. Maine, s. Que., and s. 
Ont., w. to Mich., Wis., and se. Minn., s. to Iowa and IIl., and e. to Ind., 
n. Ky., W. Va., Pa., and N.Y. Also local s. in mts. of w. Va. and w. 
N.C. 
8. Crataegus columbiana Howell, Columbia hawthorn. From ex- 
treme sw. Sask. (Cypress Hills) w. to c. B.C., s. to Oreg. and s. Mont. 
9. Crataegus coccinioides Ashe, Kansas hawthorn. S. Ill., Mo., se. 
Kans., ne. Okla., and n. Ark. 
10. Crataegus crus-galli L., cockspur hawthorn. S. Que., Vt., and s. 
Ont., w. tos. Mich., s. Wis., and Iowa, s. to e. Kans. and n.c. and e. 
Tex., e. ton. Fla. and Ga., and n. to Mass. Introduced ne. to Maine. 
11. Crataegus dilatata Sarg., broadleaf hawthorn. S. Que. and s. 
Ont. s. to N.Y., Vt., N.H., Mass., Conn., and R.I. 
12. Crataegus douglasii Lindl., black hawthorn. Local in s. and se. 
Alaska, from B.C. s. to c. Calif., e. mostly in mts. to N. Mex., and ex- 
treme nw. Tex., and n. to e. Mont. and s. Sask. Also local near Lake 
Superior in ne. Minn., n. Mich., and Ont. 
13. Crataegus erythropoda Ashe, Cerro hawthorn. Mts. of s. Wyo., 
c. and w. Colo., n. N. Mex., and c. Ariz. 
14. Crataegus flabellata (Bosc) K. Koch, fanleaf hawthorn. Nfld., 
N.S., s. Que., and Maine, w. to s. Ont., Mich., and Minn., s. to Ill. and 
La., and e. to Ga. 
15. Crataegus greggiana Eggl., Gregg hawthorn. C. Tex. (Edwards 
Plateau) s. to ne. Mex. (Coah., N.L.). 
16. Crataegus flava Ait., yellow hawthorn. Va. sw. to n. Fla., Miss., 
and e. Tenn. 
17. Crataegus harbisonii Beadle, Harbison hawthorn. Tenn., Ala., 
and Miss. 
18. Crataegus intricata Lange, Biltmore hawthorn. N.H. and Vt., 
w. tos. Ont. and s. Mich., s. to Mo., Ark., and se. Okla., and e. to Ga. 
and N.C. 
19. Crataegus lacrimata Small, Pensacola hawthorn. Nw. Fla. 
(Walton to Escambia Co.). 
20. Crataegus marshallii Eggl., parsley hawthorn. Coastal Plain 
mostly, from se. Va. s. to c. Fla. and w. to e. Tex., and n. in Miss. 
Valley to se. Okla., se. Mo., and w. Tenn. 
21. Crataegus mollis Scheele, downy hawthorn. N.S., s. Que., and 
Maine, w. tos. Ont., n. Mich., Minn., and se. N. Dak.,s. tos. c. Tex., 
e. to Ala., and n. to W. Va. and N.Y. 
22. Crataegus opaca Hook. & Arn., riverflat hawthorn. Coastal 
Plain of sw. Ala., Miss., La., s. Ark., and e. Tex. 
23. Crataegus phaenopyrum (L. f.) Medic., Washington hawthorn. 
Va. w. to Ky., s. Ill., and s. Mo., s. to Ark., and e. to Ala., n. Fla., and 
S.C. Local n. to s. Ohio. Planted and escaped from Md. ne. to Mass. 
and naturalized locally. 
24. Crataegus pruinosa (H. L. Wendl.) K. Koch, frosted hawthorn. 
S. Que. and sw. Maine, w. tos. Ont.,n. Mich., and Wis., s. to se. Iowa, 
se. Kans., and e. Okla., and e. to Ark., Tenn., and N.C. 
25. Crataegus pulcherrima Ashe, beautiful hawthorn. Sw. Ga., n. 
Fla., and s. Ala. 
26. Crataegus punctata Jacq., dotted hawthorn. S. Que. and N.H., 
w. tos. Ont., n. and s. Mich., and e. Minn., s. to Mo., sw. Kans., and e. 
Okla., and e. to Ark., Ga., and S.C. 
27. Crataegus saligna Greene, willow hawthorn. Mts. of w. Colo. 
only. 
28. Crataegus reverchonii Sarg. Reverchon hawthorn. S. Mo. and 
se. Kans., s. to sw. Okla., c. Tex., and Ark. 
29. Crataegus spathulata Michx., littlehip hawthorn. Va. w. to 
Tenn. and s. Mo., s. to se. Okla. and e. Tex., and e. to n. Fla. 
30. Crataegus texana Buckl., Texas hawthorn. Se. and s. Tex., 
mostly near coast. 
31. Crataegus succulenta Schard., fleshy hawthorn. N.S., P.E.I., s. 
Que., and Maine, w. to Ont., n. Mich., Minn., s. Man., and w. N. Dak., 
s. to Nebr. and Mo., e. to Tenn. and w. N.C., and n. to W. Va., Pa., 
and N.J. Also local in mts. of s. Most., Wyo., Colo., and n. Utah and 
in Kans. 
32. Crataegus tracyi Ashe, Tracy hawthorn. C. Tex. (Edwards 
Plateau), Trans-Pecos Tex., and n. Coah., Mex. (Sierra del Carmen). 
33. Crataegus triflora Chapm., threeflower hawthorn. Ga., Ala., 
and Miss. 
34. Crataegus uniflora Muenchh., oneflower hawthorn. N.Y. 
(Long Is.), N.J., and se. Pa., w. tos. Ohio, Ky., and s. Mo. s. to e. Okla. 
and e. Tex., and e. to n. Fla. 
35. Crataegus viridis L., green hawthorn. Coastal Plain mostly, 
from Del., se. Md., and se. Va., s. to n. Fla., w. to e. Tex., and n. in 
Miss. Valley to e. Okla., se. Kans., Mo., s. Ill., and sw. Ind. 
36 Juniperus erythrocarpa Cory, redberry juniper. Trans-Pecos 
Tex., s. N. Mex., and s. Ariz. Also in n. Mex. (Son. to Dgo., Zac., and 
Tamps.). (Part of the northern range formerly was mapped under 
Juniperus monosperma (Englem.) Sarg., oneseed juniper.) 
FUTURE WORK 
No further revision of the maps in “‘Atlas of United States Trees’ 
is planned. However, interested specialists are encouraged to revise 
the tree species maps for their States and to add range extensions 
and corrections, particularly in those States lacking atlases or similar 
’ 
publications. Perhaps, future taxonomic monographers will compile 
detailed information on distribution. 
In general, new data on tree species ranges may be sent to the 
State herbarium. Duplicate specimens confirming important records 
should be deposited in one or more large herbaria, as well as the her- 
barium of the State or institution. Summaries of noteworthy range 
extensions and other records merit publication. 
