---
kind: "section"
citation: "7 C.F.R. § 201.56-8"
title: "7"
number: "201.56-8"
heading: "Flax family, Linaceae."
url: "https://uscodex.org/cfr/7/201.56-8"
---

# §201.56-8. Flax family, Linaceae.


Kind of seed: Flax.

- (a) **General description.**
  - (1) **Germination habit—** Epigeal dicot. (Due to the mucilaginous nature of the seed coat, seedlings germinated on blotters may adhere to the blotter and appear to be negatively geotropic.)
  - (2) **Food reserves—** Cotyledons which expand and become photosynthetic.
  - (3) **Shoot system—** The hypocotyl elongates carrying the cotyledons above the soil surface. The epicotyl usually does not show any development within the test period.
  - (4) **Root system—** A primary root, with secondary roots usually developing within the test period.
- (b) **Abnormal seedling description.**
  - (1) **Cotyledons—**
    - (i) **Less than half of the original cotyledon tissue remaining attached.**
    - (ii) **Less than half of the original cotyledon tissue free of necrosis or decay.**
  - (2) **Epicotyl—**
    - (i) **Missing.** (May be assumed to be present if cotyledons are intact.)
    - (ii) [Reserved]
  - (3) **Hypocotyl—**
    - (i) **Deep open cracks extending into the conducting tissue.**
    - (ii) **Malformed, such as markedly shortened, curled, or thickened.**
  - (4) **Root—**
    - (i) **None.**
    - (ii) **Weak, stubby, or missing primary root with weak secondary or adventitious roots.**
  - (5) **Seedling—**
    - (i) **One or more essential structures impaired as a result of decay from primary infection.**
    - (ii) **Albino.**

## Notes

### Amendments

[59 FR 64505 Dec. 14, 1994]

### Authority

Authority: 7 U.S.C. 1592.

### Amendments

[59 FR 64505 Dec. 14, 1994]