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Fig.406. Myrlophyllum spicatum L., Spiked Water-milfoil.
These water plants play an important part in our watercourses in fish and game culture. Some species are seen in indoor aquaria.
96b) With but one style; stigma 2 to 4-branched.
Evening-Primrose Family, ONAGRACEAE
Fig.407. Gaura biennis L., Biennial Gaura.
Tropical America and New Zealand brings us the Fuchsia, several species of which are common ornamentals. They belong to this family.
97a) Fruit fleshy. Figs. 409 and 410
97b) Fruit dry when ripe; herbs; flowers small, generally in simple or compound umbels; petals 5; stamens 5; leaves alternate and usually compound.
Carrot Family, UMBELLIFERAE
Fig.408. a) Pastinaca sativa L., Parsnip; b) Eryngium yuccaefollum Mich., Rattle snake-master.
This large and distinctly marked family includes many favorite ornamentals as well as some well-known food plants, such as Carrot, Parsley, and Celery. Herbs for seasoning furnished by the family include Dill, Cumin, Coriander, Lovage, Anise, Myrrh, and Caraway. Several highly poisonous plants also belong here, the Poison-Hemlock being an outstanding example.
98a) Leaves simple; with no prickles. Trees or shrubs. Fruit a
pome.
Rose Family (in part), ROSACEAE
Fig.409. Crataegus punctata Jacq., Dotted Thorn.
This is an exceptionally large family. The genus Crataegus in itself has more than a thousand species.
98b) Leaves compound; or if simple, with prickles. Herbs, shrubs, trees. Fruit a drupe or berry.
Ginseng Family, ARALIACEAE
Fig.410. Aralla nudicaulis L., Wild Sarsaparilla.
The Ginsengs, important as drugs, belong to this family and are often raised on a large scale.
99a) Spiny, fleshy plants; stems often jointed; leaves absent or small; numerous petals and sepals; stamens on a hypanthium.
Cactus Family, CACTACEAE
Fig.411. a) Carnegiea gigantea Suwarro, Giant Cactus, the largest known cactus; may attain a height of 40 feet; b) Opuntia engelmannii S-D.; c) Echinocactus grusonii Hild, Golden Cactus;
d) typical cactus flower;
e) Astrophytum myrlostigma,
Bishop's Cap.
99b) Not as in 99a. Figs. 412 to 417
100a) Ovary with but one cell. Figs. 412 to 414
100b) Ovary with 2 or more cells. Figs. 415 to 417
101a) Sepals or calyx lobes 2; smooth herbs with fleshy entire
leaves.
Pursiane Family, PORTULACACEAE
Fig.412. Portulaca oleraceae L., Purslane.
Very common in gardens. Being a xerophyte, it can stand much more abuse than most of its competitors.
101b) Sepals or calyx lobes more than 2. figs. 413 and 414
102a) Erect or climbing herbs, with stinging or glandular hairs; stamens many; petals 5 or sometimes appearing as 10.
Loasa Family, LOASACEAE
Fig.413. a) Mentzella albicau-lis Dougl., White-stemmed Mentzella; b) Nuttallla decapetala (Pursh), Prairie Lily.
This family belongs principally to the western part of our country. The greater number of species belong in South America.
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