Genus 2. WATER-LEAF FAMILY. 67 
2. NEMOPHILA Nutt. Journ. Phil. Acad. 2: 179. 1822. 
Annual diffuse pubescent slender and fragile herbs, with alternate or opposite mostly 
pinnatifid or lobed leaves. Flowers white, blue or variegated, solitary, peduncled, lateral or 
terminal. Calyx deeply 5-cleft or 5-parted, with a reflexed or spreading appendage in each 
sinus. Corolla campanulate or rotate-campanulate, mostly longer than the calyx, usually 
with 10 small appendages within at the base, the lobes convolute in the bud. Stamens included; 
anthers ovate or oblong. Ovary 1-celled with placentae similar to those of Hydrophyllum; 
styles partly united; ovules 2-12 on each placenta. Capsule 2-valved. Seeds 1-4. [Greek, 
grove-loving. ] 
About to species, natives of North America, mostly Californian. Type species: Nemophila 
phacelioides Nutt, 
1. Nemophila micrécalyx (Nutt.) F. & M. 
Small-flowered Nemophila. Fig. 3488. 
Ellisia microcalyx Nutt. Trans. Am. Phil. Soc, (IL.) 5: 
191. 1833-37. 
Nemophila microcalyx F.& M. Sert. Petrop. pi. 6. 1846. 
Stems very slender, diffuse, branched, 2’-15’ long. 
Leaves membranous, petioled, 1’~23’ long, pinnatifid 
or pinnately divided into 3-5 obovate cuneate or 
oblique, obtuse 2-3-dentate or -lobed, approximate or 
confluent segments, the upper all alternate, the lowest 
opposite; peduncles slender, 4-12” long, opposite 
the leaves, shorter than or equalling the petioles; 
flowers white or blue, 14”-2” long; appendages in 
the sinuses of the calyx minute; calyx scarcely en- 
larged in fruit; ovules 2 on each placenta; corolla- 
appendages obsolete or none; anthers oval; capsule 
about 14” in diameter, much longer than the calyx, 
I-2-seeded. “lies 
In woods, Virginia to Florida, west to Arkansas and —— 
Texas. April-June. 
3. NYCTELEA Scop. Introd. 183. 1777. ue 
[MacrocaLyx Trew, Nov. Act. Nat, Cur. 2: 330-332. pl. 7. f. 1. Hyponym. 1761.] 
[Exurs1a L. Sp. Pl. Ed. 2, 1662. 1763. Not Syst. Ed. 10, 1121. 1759.] 
Annual hirsute or pubescent branching slender herbs, with opposite or alternate, pin- 
nately divided or 1-3-pinnatifid leaves, and solitary or racemose small white or bluish flowers. 
Calyx 5-lobed or 5-parted, spreading, much enlarged in fruit, destitute of appendages in the 
sinuses. Corolla campanulate or nearly cylindric, shorter than or slightly exceeding the calyx, 
usually with 5 minute appendages on the tube within, its lobes convolute or imbricated in the 
bud. Stamens included; anthers oval or oblong. Ovary 1-celled; styles united below; ovules 
2-4 on each of the placentae, which are similar to those of the two preceding genera. [Name 
unexplained. ] 
About 3 species, natives of North America, the fol- 
lowing typical. 
1. Nyctelea Nyctélea (L.) Britton. 
Nyctelea. Fig. 34809. 
Ipomoea Nyctelea L. Sp. Pl. 160. 1753. 
Polemonium (?) Nyctelea L. Sp. Pl. Ed. 2,231. 1762. 
Ellisia Nyctelea L. Sp. Pl. Ed. 2, 1662. 1763. 
Macrocalyx Nyctelea Kuntze, Rev. Gen. Pl. 434. 
1891. 
Sparingly hirsute-pubescent; stem several times 
forked, 4’-12’ high. Leaves pinnately divided, 
petioled, 2’-4’ long, ovate-oblong in outline, the 
upper alternate, the lower opposite, the segments 
oblong or lanceolate, dentate, entire or lobed; 
peduncles slender, 1-flowered, opposite the leaves; 
calyx in flower about 2” long, about equalling 
the corolla, enlarging, widely spreading and be- 
coming 8”’-14” broad in fruit, its lobes lanceolate 
or ovate-lanceolate, acuminate; fruit at length 
pendulous; capsule globose, 2-3” in diameter. 
In moist soil, New Jersey to Minnesota, Saskatche- 
wan, Virginia, Nebraska and Kansas. April-July. 
