. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 48 OPHIOGLOSSACEAE (ADDEu's TONGUE FAMILY) distinct, rather coriaceous, not reticulated, globular, without a ring, and open- ing transversely into two valves. Sterile segment of the frond ternately or pinnately divided or compound ; veins all free. Spores copious, sulphur-color. (Name a diminutive of fiSrpvs, a cluster of grapes, from the appearance of the fructification.) § 1. EUBOTRYCHIUM Milde. Base of the stalk (^containing the bud) complete
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 48 OPHIOGLOSSACEAE (ADDEu's TONGUE FAMILY) distinct, rather coriaceous, not reticulated, globular, without a ring, and open- ing transversely into two valves. Sterile segment of the frond ternately or pinnately divided or compound ; veins all free. Spores copious, sulphur-color. (Name a diminutive of fiSrpvs, a cluster of grapes, from the appearance of the fructification.) § 1. EUBOTRYCHIUM Milde. Base of the stalk (^containing the bud) completely closed; sterile segment more or less fleshy ; the cells of the epidermis straight. * Sterile segment sessile or on a short petiole (less than I cm. long"). 1. B. Lun&ria (L.) Sw. Very fleshy (8-18 cm. high) ; sterile segment sub- sessile, borne near the middle of the plant, oblong, simply pinnate with 5-15 lunate or fan-shaped very obtuse crenate, incised, or nearly entire, fleshy divisions, more or less excised at the base on the lower or on both sides, the veins radiating from the base and repeatedly forlcing; fertile segment panicled, 2-3-pinnate. — Open places, e. Que. to Vt., n. O., L. Superior, and northw.; rare. (Widely distr.) Fig. 1. Also on wooded cliffs near Syracuse, , where tending to a more slender form with decidedly stipitate sterile segment and subremote more narrowly cuneate pinnae (B. onundagense Underw.). 2. B. simplex E. Hitchcock. Fronds small (5-10, or rarely 25 cm. high) ; sterile segment short-petioled from near base, middle, or sum- mit of the stalk, thiokish, simple, and roundish, or pinnately 3-7-lobed; the lobes roundish- obovate, nearly entire, decurrent on the broad and flat indeterminate rhachis, the terminal one usually emargiiiate; the veins all forking from the base; fertile segment simple or 1-2- pmnate. (B. tenebrosum A. A. Eaton.) — N. S. to Md., Ont., Minn., and Rocky Mts.; rare. (Eu.) Fig. 2. Var. comp6situm Lasch. St
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