. Flowers of the field. Botany. POND-WEED FAJIILY 513 2. ScHEUCHZERiA.—Leaves linear; flowers bracteate, perfect; perianth of 6 similar, reflexed, green leaves ; sldmens 6 ; carpels 3, united below, 3. POTAMOGETON.—Flowers in a spike, perfect; perianth of 4 leaves ; stamens 4 ; carpels 4, sessile. 4. RuppiA.—Flowers in a spike, perfect; perianth absent ; stamens 2 ; carpels 4, at first sessile, afterwards each raised on a long stalk. 5. Zanxichlllia. — Flowers axillary, moncecious ; perianth absent; stamen i ; carpels 2—6 ; stigmas peltate. 6. ZosTEi-'.A.—Flowers monce- cious, arranged alterna
. Flowers of the field. Botany. POND-WEED FAJIILY 513 2. ScHEUCHZERiA.—Leaves linear; flowers bracteate, perfect; perianth of 6 similar, reflexed, green leaves ; sldmens 6 ; carpels 3, united below, 3. POTAMOGETON.—Flowers in a spike, perfect; perianth of 4 leaves ; stamens 4 ; carpels 4, sessile. 4. RuppiA.—Flowers in a spike, perfect; perianth absent ; stamens 2 ; carpels 4, at first sessile, afterwards each raised on a long stalk. 5. Zanxichlllia. — Flowers axillary, moncecious ; perianth absent; stamen i ; carpels 2—6 ; stigmas peltate. 6. ZosTEi-'.A.—Flowers monce- cious, arranged alternately in 2 ro\ys on a long leaf-like spadix ; perianth absent; stamen i, sessile, i-chambered ; carpel i, sessile. 7. ^NAfAS.—Flowers axillary, dicecious; perianth absent or 4-lobed ; stamen i, sessile, i—4- chambered; carpel i, sessile; sttgmas 2—4, I. TriGLijCHIN (Arrow-grass). —Roots fibrous ; leaves linear ; flowers in an ebracteate raceme, small, green, inconspicuous, perfect; perianth of 6 similar, erect leaves ; stamens 6 ; ovary 3—6-chambered, superior ; stig- mas feathery ; fruit 3—6-seeded, separating into dehiscent carpels. (Name from the Greek Irets. three, and glochin, a point, from the pointed carpels.) 1. T. paliistre (Marsh Arrow-grass).—A plant with something of the habit of Plantdgo maritima, from which it may easily be distinguished by its lewer flowers and slenderer taceme, as well as by the different structure of the flowers. It has runners; leaves radical, linear, fleshy, S—10 in. high ; flowers in a loose raceme; friiit linear, angular, of 3 combined car pels.^-Isls^ishy places; common.—Fl. June—August. Perennial. 2. T. maritimum (Sea Arrow-grass).—Like the last, but larger, stouter, and well distinguished by its rounded, ovoid capsule of 6 L L. TRIGLOCHIN P.^LUSTRE {Marsh Arrcnv-grajs).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1911
