10 NORTH AMERICAN FLORA [VoluME 16 
deltoid, rhombic or pentagonal, acute or obtuse, 4.5-21 cm. long, 7-22 cm. broad, two or 
three times pinnately or subternately divided, with distant, often long-stalked primary 
divisions, the lowest deltoid to pentagonal, the upper ones oblong or lanceolate to deltoid, 
the penultimate divisions lanceolate or oblong to oblong-ovate, pinnately divided into two 
to six cuneiform to fan-shaped, or ovate to orbicular, mostly sessile, usually distant, oblique 
lateral segments, and somewhat larger, similarly shaped tips, the outer margins finely 
serrulate ; sporophyl 6-33 cm. long, the stalk 4-27 cm. long, the panicle lax; spores matur- 
ing in September. 
TYPE LOCALITY: Spring Hill, Alabama. 
DISTRIBUTION: Alabama and Georgia. 
22. Botrychium Underwoodianum Maxon, Bull. Torrey 
Club 32: 220. 1905. 
Sceplridium Underwoodianum Lyon, Bot. Gaz. 40: 458. 1905. 
Plant 17-46 cm. high, the rhizome erect; bud densely hairy, entirely enclosed ; 
commonstalk short, hypogean; lamina not lax, with a stalk 3.5-20 cm. long, broadly pen- 
tagonal or deltoid, acute or obtuse with a rounded apex, 5-18 cm. long, 6.5-21.5 cm. broad, 
3 or 4 times pinnately or subternately divirled, the lowest primary divisions deltoid or 
pentagonal, the others mostly oblong to lanceolate, the penultimate divisions oblong to 
lanceolate, pinnately divided into large, mostly oblong or oval, sometimes ovate, rounded, 
mostly separated, oblique lateral segments, and broad, rounded, somewhat rhombic tips, 
the outer margins of the segments finely serrulate; sporophyl 15-40 cm. long, the stalk 
11.5-26.5 cm. long, the panicle rather close; spores maturing from August to September. 
TYPE LOCALITY : Jamaica. 
DISTRIBUTION : Blue Mountains, Jamaica; Haiti (?). 
ILLUSTRATION: Bull. Torrey Club 32: pi. 6. 
DOUBTFUL SPECIES 
Botrychium cicutarium Sw. Syn. Fil. 171. 1806. Based on Plumier, Traité Foug. 
159, from Santo Domingo. Not identifiable with any known material. 
2. OPHIOGLOSSUM L. Sp. Pl. 1062. 1753. 
Low terrestrial plants. Rhizomes hypogean, small, usually erect, sometimes producing 
suckers, the apex naked, or covered only with the bases of old leaves. Leaves erect in verna- 
tion, conduplicate, glabrous, one to four, herbaceous and fleshy, consisting of a usually short 
commonstalk, an entire linear-lanceolate or elliptic to reniform lamina, and a single erect 
sporophyl; venation reticulate, the areolae simple or with included free and anastomosing 
veinlets; sporophyl a slender, usually long-pedunculate spike, consisting of two rows of 
large, discoid or globose, coalescent, transversely dehiscent, sporangia. Spores reticulately 
marked, pitted, often verrucose. 
Type species, Ophioglossum vulgatum L,. 
Lamina deltoid-ovate to cordate or reniform, the base truncate or auriculate, rarely obtuse. 
Rhizome cylindric ; roots about 1mm. thick ; spike rather slender. 
Plants mostly more than 16 cm. high (13-36) ; lamina auriculate. 1. O. reticulatum, 
Plants mostly less than 12 cm. high (4.5-18) ; lamina truncate. 2. O. Harrisit. 
Rhizome globose; roots lessthan 0.5 mm. thick; spike short and stout. 3. O. crolalophoroides. 
Lamina lanceolate or spatulate to ovate, rarely broader, the base acute, ob- 
tuse or rounded. 
Piants normally small, usually less than 9 cm. high (1.5-11.5). 
Median vein emitting one or two veins; areolae mostly divergent ; 
lamina usually plane and horizontal, y6- ¥y the height of the plant. 4.:0O. fenerum. 
Median vein simple, except for connecting veinlets ; areolae mostly 
parallel; lamina usually folded, ascending, 4-¥% the height of the 
plant. 5. O. californicum . 
Plants larger, usually more than 12 cm. high (6-40). 
Lamina lanceolate to ovate, spatulate, elliptic or oblong, the apex 
round or sometimes acute, not apiculate; spores reticulate with 
thin raised ridges. 6. O. vulgatum. 
Lamina elliptic or rarely ovate, usually acute, apiculate; spores 
pitted. 7. O. Engelmanni. 
Sg 
