402 Vermischte neue Diagnosen. 
thera linearia, fere aeque longa ac filamenta, acute mucronata: panicula 
fertilis contracta, ramulis, pedicellis calycibusque pilosiusculis. Achenia 
immatura breviter hirtella. — The specimens of this new ally of T. poly- 
gamum were collected in the years 1902 and 1905, at Devil's Lake, 
North Dakota, by Dr. J. Lunell, who remarks that this plant comes 
into flower from four to six weeks later than the other Thalictra of this 
region. All his specimens were taken in July; and those of the fertile 
plant with fruit not yet mature, were gathered in the middle of that 
month. — The points of contrast between this and our southern T. poly- 
gamum are several and well marked. 
616. Aquilegia pinetorum I. Tidestrom in American Midland Nat., I (1910), 
p. 166. — Herba perennis, 4 dm. v. altior: caules pauci e caudice crasso, 
supra ramosi, pubescentes v. glabori: folia basilaria numerosa, 2-ternata; 
petioli graciles, 10—15 cm longi, basi dilatati; petioli secundarii paene 
filiformes, 1—4 cm longi, petioluli filiformes, 0,5—1 cm longi, pubes- 
centes; foliola 2—3-fida, segmentis inciso-rotundato-lobatis, basi rotun- 
data-lobatis, basi rotundata v. cuneata, supra viridia subtus glaucescentia ; 
caulinia minora ternata, simpliciora: flores magni (A. coerwea minores) 
albi; sepala ovato-oblonga, acuta, basi contracta, 3 cm plus minusve 
longa, alba v. saepe coerulea; petala spatulata, apice rotundata, calcari- 
bus rectis, tenuibus, 7 cm plus minusve longis; stamina petala su- 
perantia, inaequalia, antheris oblongis, 2 mm longis; staminodia mem- 
branacea; ovaria pubescentia, stylis rectis stamina superantibus; folliculi 
ignoti. — Hab. In the Pinus ponderosa area, Buckskin Mountains, 
Northern Arizona. (Tidestrom, no. 2328, June 28, 1909). 
677. Aquilegia scopulorum I. Tidestrom, 1.c.,p. 167. — Herba perennis, 
glabra v. supra pubescens, 1—2 dm alta, multicaulis e radice crassa: 
folia basilaria 2-ternatisecta; petioli 4—6 cm longi, basi dilatati; foliola 
conferta, sessilia, coriacea, venis obscuris, rotundata, basi truncata, tri- 
fida, v. lobata, 1 cm plus minusve lata; caulinia ternata, simpliciora: 
flores albo-lutei v. albo-coerulei; sepala ovato-oblonga, pallide purpurea 
saepe coerulea; petala oblonga, apice rotundata, albida; calcaribus 
tenuibus, 3—5 em longis: stamina petala aequantia: ovaria pubescentia; 
styli tenues, 5 mm longi; folliculi ignoti. — Hab. On gravelly slopes. 
Wasateh Peak, Central Utah. (Tidestrom, no. 1788, Aug. 22, 1908). 
678. Aquilegia scopulorum f. calcarea (Jones) Tidestrom, l. c., p. 170. 
— A. caerulea var. calcarea Jones, Proc. Calif. Acad. Sc. ser, Il, 5, 
619, 1895. — Pinus ponderosa area near Cannonville, S. Utah, alt. 2100 m. 
Jones. 
679. Aquilegia rubicunda I. Tidestrom, 1. c., p. 168. — Herba perennis 
pubescens, 1—3 dm. alta; caules pauci e radice crassa; folia basilaria 
petiolis elongatis 3-ternati-secta; petioluli filiformes; foliola 1 cm plus 
minusve longa, basi truncata v. cuneata, segmentis cuneata tridentata 
v. varie lobata, lobis rotundatis: caulinia simpliciora; flores luteirubi- 
cundique; sepala avata acuta, rubicunda, 1 cm plus minusve longa; 
petala spatulata, pallide lutea, apice rotundata 5—7 mm longa, calcaribus 
CUT MO arte 
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