Novitates Boreali-Americanae. III. 5 
the Clover Mountains, Nevada, in the summer of 1893. The species 
has never been distributed, the type being in my private herbarium. 
29. Aconitum infectum Greene, nov. spec. 
Caulis erectus simplex validus 3—7 dm altus, plus minus fistulosus, 
plerumque glaberrimus et colore inter caeruleum et griseum eleganter 
tinctus, usque ad racemum simplicem crebre foliosus; folia firma glauces- 
centia, superiora superne puberula, inferiora utrinque glaberrima, omnia 
profunde 5-partita, segmentis circumscriptione rhomboideis duplici modo 
eleganter incisis; racemus brevis, confertim 7—10-florus; flores mediocres 
atrocyanei, sepala anteriora oblonga, acuta, sepalo posteriore breviter 
galeato, rostro brevi acuto deorsum spectante; folliculi glaberrimi. 
Northern Arizona, and apparently peculiar to the San Francisco 
Mountains above Flagstaff, by Mac Dougal, 1898, Purpus, 1900, and 
Leiberg, 1901. Evidently a local species, peculiar to this elevated and 
isolated group of mountains. It is named in allusion to the bronzy blue 
tinge of the smooth shining stems. 
30. Aconitum Arizonicum Greene, nov. spec. 
Caulis metralis erectus simplex gracilis glaber, a basi usque ad 
racemum foliis amplis petiolatis obsitus; folia 10—15 cm lata, tenuia 
laete viridia, supra praesertim secus venas minutim pubescentia, infra 
medium 5-partita, segmentis cuneato-obovatis, supra medium breviter in- 
cisis, lobulis ovatis obtusis mucronulatis; racemus simplex laxus circa 
10-florus; flores magni caerulei; sepala anteriora magna, saepissime 
plus quam 2 em longa et valde conspicua, anguste lanceolata acuta; se- 
pali posterioris sacco subgloboso, rostro magno porrecto apice incurvo; 
folliculi erecti glaberrimi. 
Santa Rita Mountains, in southern Arizona, growing along brookets 
at 6000 feet, collected by C. G. Pringle, July and August, 1881. ` 
31. Aconitum Mogollonicum Greene, nov. spec. 
Caulis erectus 5—8 dm altus modice gracilentus, infra medium spar- 
sissime foliosus, glaber; folia ampla, 11—15 cm lata, laete viridia, pro- 
funde 5-partita, segmentis angustis euneiformibus, apice trisectis, laciniis 
incisis, lobis oblongis mucronatis, racemus 5—8-florus, flores majusculi 
saturate caerulei; sepala anteriora conspicua, oblonga vel oblongo-lanceo- 
lata; galea magna, late subconica, obtusissima, rostro longo acuminato 
deorsum spectante; folliculi pilosiusculi, recti, a basi distincte divergentes. 
Mogollon Mountains, in southeastern New Mexico, O. B. Met- 
calfe, 15 Aug., 1908, distributed under no. 518, and by me at that time 
thought to be possibly referable to my À. insigne. 
32. Aconitum insigne Greene, nov. spec. 
Caulis praealtus, verisimiliter plus quam metralis, erectus, simplex, 
pube minuta recurva sparsim obsitus; folia saturate viridia, circa 12 em 
lata, utrinque sparsim strigulosa, inaequaliter 5-partita, segmentis sub- 
rhomboideis supra medium profunde incisis; racemus longus laxus multi- 
florus, pedicellis patentibus plus minus arcuatis; flores magni, saturate 
caerulei; sepala anteriora conspicua, lanceolata vel ovato-lanceolata; se- 
