---
kind: "section"
citation: "7 C.F.R. § 201.56-10"
title: "7"
number: "201.56-10"
heading: "Spurge family, Euphorbiaceae."
url: "https://uscodex.org/cfr/7/201.56-10"
---

# §201.56-10. Spurge family, Euphorbiaceae.


Kind of seed: Castorbean.

- (a) **General description.**
  - (1) **Germination habit—** Epigeal dicot.
  - (2) **Food reserves—** Cotyledons, which are thin and leaf-like; endosperm (fleshy food-storage organs) usually persisting in the laboratory test.
  - (3) **Shoot system—** The hypocotyl lengthens, carrying the cotyledons, endosperm, and epicotyl above the soil surface.
  - (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) **Endosperm—**
    - (i) **Missing.**
    - (ii) [Reserved]
  - (3) **Epicotyl—**
    - (i) **Missing.**
    - (ii) **Damaged or missing terminal bud.**
  - (4) **Hypocotyl—**
    - (i) **Deep open cracks extending into the conducting tissue.**
    - (ii) **Malformed, such as markedly shortened, curled, or thickened.**
  - (5) **Root—**
    - (i) **None.**
    - (ii) **Weak, stubby, or missing primary root with weak secondary or adventitious roots.**
  - (6) **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]